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Taurine CAS NO.107-35-7
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107-35-7 Usage

Preparation

  1. Extract from the mollusk such as fish, shellfish and so on.
  2. After reacting to form sodium 2-hydroxyethanesulfonate at 70℃with ethylene oxide and sodium hydrogen sulfite as raw materials, this product can be obtained by further aminolysis and desalination [1].
  3. It can be obtained by reaction between ethylene imine and sulfurous acid [1].
  4. It can be obtained with nitroethylene and sodium bisulfite as raw materials[1]. CH2=CHNO2+NaHSO3→[1]
  5. It can be obtained preparing by sulfonation of sodium sulfite and aminolysis in liquid ammonia with sodium sulfite as the raw material [1].
  6. Ethanolamine is used as the raw material to react with hydrochloric acid to form chloroethylamine hydrochloride, which is reacted with sodium sulfite to produce sodium ethylamine sulfonate. This product can be obtained by desalination with dilute sulphuric acid [1].
  7. Use aziridine as the raw material and react with sulfur dioxide and water to obtain this product [1].
  8. Like 6, it can be obtained by using bromoethylamine hydrobromide as the raw material and reacting with sodium sulfite [1].
  9. Use 1, 2-dichloroethane as the raw material and react with sodium sulfite to produce chloroethanesulfonic acid sodium salt. React with ammonia under heating with pressure to form sodium amino ethyl sulfonate. Then it can be prepared by hydrochloric acid-acidification desalination [1].
  10. Like 9, we use hydroxyethanesulphonic acid as the raw material and react with ammonia under heating with pressure to obtain this product [1].
  11. We use 2,2-dimethyl thiazoles as the raw material, hydrogen peroxide or manganese dioxide as the oxidizing agent. This product can be obtained by oxidation under pressure [1], with acetone as by-product at the same time.
  12. It can be obtained by using 2-amino alcohol monoester as the raw material and reacting with sodium sulfite [1]. (H2NCH2CH2O)HSO3+Na2SO3→ [1]+Na2SO4
  13. N- vinyl propanamide is used as the raw material to react with sodium bisulfite to produce sodium 2- propane amino ethyl sulfonate. Then this product can be obtained by acidification desalination and hydrolysis.

History

As the conditionally essential amino acid of the human body, it is a kind of β- sulphamic acid. In mammalian tissues, it is a metabolite of methionine and cystine. It was first isolated from ox bile in 1827, hence the name taurine. It commonly exists in the form of free amino acids in various tissues of animals, but not goes into proteins without combination. Taurine is rarely found in plants. Early on, people had considered it a bile acid binding agent of taurocholic combined with cholic acid. However, recent studies have shown that taurine has many important biological functions apart from the above mentioned forming taurocholic acid and participating in the digestion and absorption of lipids.It is important nutrients for normal development and function of cranial nerve to play the role in adjusting a variety of nerve cells of the central nervous system; taurine in retina accounts for 40% to 50% of total free amino acid, which is necessary for maintaining the structure and function of photoreceptor cells; affecting the myocardial contracts dint, regulating calcium metabolism, controlling arrhythmia, lowering blood pressure, etc; maintaining cellular antioxidant activity to protect the tissues from damaging free radicals; decreasing platelet aggregation and so on. As the metabolites containing sulphur amino acids, mammals have different abilities to synthesize taurine: The synthetic ability of rats and dogs is stronger, the synthetic ability of human and primate is lower, while that of kits and human infants is very low. Taurine in the infant mainly comes from the diet, so it is recommended to supplement the taurine in the baby's diet. Foods with a higher content of taurine include conch, clam, mussel, oyster, squid and other shellfish food, which chould be up to 500 ~ 900mg/100g in the table part; the content in fish is comparably different; the content in poultry and offal is also rich; the content in human milk is higher than cow milk; taurine is not found in eggs and vegetable food.

Biological Activity

One of the most abundant free amino acids in the brain. A partial agonist at the inhibitory glycine receptor.

Definition

ChEBI: An amino sulfonic acid that is the 2-amino derivative of ethanesulfonic acid. It is a naturally occurring amino acid derived from methionine and cysteine metabolism. An abundant component of fish- and meat-based foods, it has been used as an oral suppleme t in the treatment of disorders such as cystic fibrosis and hypertension.

Health Hazard

ACUTE/CHRONIC HAZARDS: Taurine evolves highly toxic fumes when heated to decomposition, and may cause irritation on contact.

Medicinal effect

  • Liver-strengthening cholagogue function: The combination of taurine and cholic acid can increase biliary permeability and is related to bile backflow; this product can also reduce cholesterol levels in the liver and reduce the formation of cholesterol calculus.
  • Anti-inflammatory and antipyretic effects: It can lower the body temperature by effects on the central 5-HT system or catecholamine system.
  • Hypotensive effect: After injecting this product, it shows the effects including reducing blood pressure, slowing down heart rate, regulating vascular tension and so on.
  • Cardiac and anti-arrhythmia action: This product can regulate the combination of Ca++ in cardiac myocytes and can reverse the adverse effects of Ca++ on the myocardium.
  • Hypoglycemic effect: This product directly affects the insulin receptor of the liver and muscle cell membrane and has the effect of insulin-like hypoglycemic action.
  • Other effects: loosening up skeletal muscle, reversing myotonia and fighting fatigue after exercise. Local application of this product can reduce the increased pressure in the eyeball caused by prostaglandin; there are still nutritional effects. Clinical use at acute hepatitis, chronic hepatitis, fatty liver, cholecystitis, etc.,as well as use in bronchitis, tonsillitis, ophthalmia and other infectious diseases. This product can be tried for cold, alcohol withdrawal symptoms, arthritis, myotonia, etc.

Chemical Properties

White crystalline powder

Reactivity Profile

Taurine is an amino acid found in combination with bile acids [Hawley].

References

https://en.wikipedia.org/wiki/Taurine
https://pubchem.ncbi.nlm.nih.gov/compound/taurine#section=Top

Uses

vitamin B1, enzyme cofactor

Air & Water Reactions

Water soluble.

Description

Taruine is an organic compounds that widely existing in animal tissues. It is a sulfur amino acid, but not being used for protein synthesis. It is rich in the brain, breasts, gallbladder and kidney. It is an essential amino acid in the pre-term and newborn infants of human. It has various kinds of physiological functions including being as a neurotransmitter in the brain, conjugation of bile acids, anti-oxidation, osmoregulation, membrane stabilization, modulation of calcium signaling, regulating the cardiovascular function as well as the development and function of skeletal muscle, the retina, and the central nervous system. It can be manufactured through the ammonolysis of isethionic acid or the reaction of aziridine with sulfurous acid. Because of its highly important physiological role, it can be supplied to energy drinks. It can also be used in cosmetics to maintain skin hydration, and used in some contact lens solution.

General Description

Large white crystals or white powder.

Fire Hazard

Flash point data are not available for Taurine, but Taurine is probably combustible.

Uses

Taurine is an organic acid found in animal tissues and is a major constituent of bile. Taurine has many biological roles such as conjugation of bile acids, antioxidation, osmoregulation, membrane stab ilization and modulation of calcium signaling.
InChI:InChI=1/C2H7NO3S/c3-1-2-7(4,5)6/h1-3H2,(H-,4,5,6)

107-35-7 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
USP (1643361)  Taurine  United States Pharmacopeia (USP) Reference Standard 107-35-7 1643361-100MG 4,662.45CNY Detail
Sigma (86329)  Taurine  BioUltra, ≥99.5% (T) 107-35-7 86329-500G 2,848.95CNY Detail
Sigma (86329)  Taurine  BioUltra, ≥99.5% (T) 107-35-7 86329-100G 1,258.92CNY Detail
Sigma (86329)  Taurine  BioUltra, ≥99.5% (T) 107-35-7 86329-25G 813.15CNY Detail
Sigma (T4571)  Taurine  PharmaGrade, Ajinomoto, Manufactured under appropriate GMP controls for pharma or biopharmaceutical production, suitable for cell culture 107-35-7 T4571-1KG 6,592.95CNY Detail
Sigma (T4571)  Taurine  PharmaGrade, Ajinomoto, Manufactured under appropriate GMP controls for pharma or biopharmaceutical production, suitable for cell culture 107-35-7 T4571-100G 1,997.19CNY Detail
Sigma (T8691)  Taurine  meets USP testing specifications, cell culture tested 107-35-7 T8691-1KG 6,563.70CNY Detail
Sigma (T8691)  Taurine  meets USP testing specifications, cell culture tested 107-35-7 T8691-100G 1,095.12CNY Detail
Sigma (T8691)  Taurine  meets USP testing specifications, cell culture tested 107-35-7 T8691-25G 393.12CNY Detail
Sigma (T0625)  Taurine  ≥99% 107-35-7 T0625-1KG 4,416.75CNY Detail
Sigma (T0625)  Taurine  ≥99% 107-35-7 T0625-500G 2,538.90CNY Detail
Sigma (T0625)  Taurine  ≥99% 107-35-7 T0625-100G 758.16CNY Detail

107-35-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name taurine

1.2 Other means of identification

Product number -
Other names tauphon

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:107-35-7 SDS

107-35-7Synthetic route

cyanomethane-sulfonic acid
753386-85-5

cyanomethane-sulfonic acid

Conditions
ConditionsYield
With hydrogen at 55℃; under 22502.3 Torr; Temperature; Pressure; Reagent/catalyst; Inert atmosphere;99.98%
Cysteamine
60-23-1

Cysteamine

Conditions
ConditionsYield
With 2,2,6,6-tetramethyl-piperidine In water at 140℃; under 3000.3 Torr; for 0.166667h; Reagent/catalyst; Temperature; Pressure;98.4%
With dihydrogen peroxide; acetic acid
sodium taurinate
7347-25-3

sodium taurinate

Conditions
ConditionsYield
With ethanolamine pH=12.5;95.7%
With sulfuric acid at 80 - 100℃; pH=7.9; Temperature; pH-value;75%
With sulfur dioxide In water pH=5 - 6; Reagent/catalyst;110 g
ammonium 2-nitroethane-1-sulfonate
856367-27-6

ammonium 2-nitroethane-1-sulfonate

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen at 20℃; pH=4.2; Concentration; pH-value; Temperature; Reagent/catalyst; Large scale;95.1%
sodium 2-hydroxyethanesulfonate
1562-00-1

sodium 2-hydroxyethanesulfonate

Conditions
ConditionsYield
With C22H24OP(1+)*CH3O3S(1-); ammonia; copper(l) chloride at 160℃; under 73507.4 Torr; for 0.5h; Reagent/catalyst; Temperature; Pressure;95%
Stage #1: sodium 2-hydroxyethanesulfonate pH=12.5;
Stage #2: With ammonia In water at 250℃; under 135014 Torr; for 2h; Autoclave;
91%
With ammonium hydroxide; sodium hydroxide at 250℃; for 2h; Reagent/catalyst; Temperature; Autoclave;78.4%
ammonium taurate

ammonium taurate

Conditions
ConditionsYield
With sulfur dioxide at 20℃; pH=4.2; Concentration; Temperature; pH-value; Large scale;95%
thiazolidine-2-thione
134469-06-0

thiazolidine-2-thione

Conditions
ConditionsYield
With formic acid; dihydrogen peroxide In water at 0 - 5℃;93%
sulfuric acid mono-(2-amino-ethyl ester)
926-39-6

sulfuric acid mono-(2-amino-ethyl ester)

Conditions
ConditionsYield
Stage #1: sulfuric acid mono-(2-amino-ethyl ester) With ammonium sulfite monohydrate at 120℃; for 18h; Autoclave;
Stage #2: With ammonium sulfite monohydrate; sodium hydroxide In water pH=7.2; Temperature;
88.1%
With water; sodium sulfite
sulfuric acid mono-(2-amino-ethyl ester)
926-39-6

sulfuric acid mono-(2-amino-ethyl ester)

ethanolamine
141-43-5

ethanolamine

Conditions
ConditionsYield
With ammonium sulfate; sulfuric acid; ammonium sulfite monohydrate In water at 110℃; for 24h; pH=6.2 - 7.2; Autoclave;85%
2-nitro-1-ethanol
625-48-9

2-nitro-1-ethanol

sodium 2-nitroethanesulfonate
859312-16-6

sodium 2-nitroethanesulfonate

Conditions
ConditionsYield
Stage #1: 2-nitro-1-ethanol With sulfur dioxide; sodium hydroxide for 15h; pH=5.9; Autoclave;
Stage #2: sodium 2-nitroethanesulfonate With hydrogen Autoclave;
81%
ammonium isethionate

ammonium isethionate

Conditions
ConditionsYield
With ammonia pH=6.5; Autoclave;75.7%
monoethanolammonium hydrogensulfate

monoethanolammonium hydrogensulfate

Conditions
ConditionsYield
Stage #1: monoethanolammonium hydrogensulfate With 1-butyl-3-methylimidazolium chloride at 120℃;
Stage #2: With sodium sulfite at 110℃; for 8h; Temperature; Reagent/catalyst;
72%
ethene
74-85-1

ethene

Conditions
ConditionsYield
Stage #1: ethene With sulfur trioxide In acetonitrile under 38000 Torr; for 288h;
Stage #2: With hydrogenchloride In water Heating;
40%
3-sulfopropanoic acid
44826-45-1

3-sulfopropanoic acid

Conditions
ConditionsYield
With sodium azide; chloroform; sulfuric acid at 45℃;
With sodium azide; sulfuric acid for 2.5h; Heating; from 3-14C labeled educt;
cysteic acid
13100-82-8

cysteic acid

Conditions
ConditionsYield
With water at 235 - 240℃;
Decarboxylation;
L-Cysteic acid
498-40-8

L-Cysteic acid

Conditions
ConditionsYield
Decarboxylierung unter anaerober Einwirkung von Leber-Extrakt;
2,2'-dithio-bis[ethylamine]
51-85-4

2,2'-dithio-bis[ethylamine]

Conditions
ConditionsYield
With ammonium iron (II) sulfate; dihydrogen peroxide at 100℃;
With ammonium iron (II) sulfate; dihydrogen peroxide at 100℃;
2-bromoethanesulfonyl chloride
54429-56-0

2-bromoethanesulfonyl chloride

Conditions
ConditionsYield
Hydrolysis.anschl. mit wss. NH3;
2-nitro-ethanesulfonic acid
503863-49-8

2-nitro-ethanesulfonic acid

Conditions
ConditionsYield
With water; nickel Hydrogenation;
With water; nickel Hydrogenation;
Taurocholic acid
81-24-3

Taurocholic acid

N-α-Hydroxypropyl-taurin

N-α-Hydroxypropyl-taurin

A

Tau
107-35-7

Tau

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
at 0 - 25℃; Equilibrium constant;
1,2-Thiazetidine 1,1-dioxide
34817-61-3

1,2-Thiazetidine 1,1-dioxide

Conditions
ConditionsYield
In water
With sodium hydroxide; potassium chloride at 30℃; Kinetics;
1-methyl-4-(phenylacetyl)pyridinium cation
124225-44-1

1-methyl-4-(phenylacetyl)pyridinium cation

2-aminoethanesulfonate
56546-93-1

2-aminoethanesulfonate

A

Tau
107-35-7

Tau

B

C14H13NO
114444-46-1

C14H13NO

Conditions
ConditionsYield
In water at 25℃; Rate constant; Equilibrium constant;
C16H36N(1+)*C6H4NO3(1-)*C2H6NO3S(1-)*H(1+)

C16H36N(1+)*C6H4NO3(1-)*C2H6NO3S(1-)*H(1+)

A

Tau
107-35-7

Tau

B

tetra-n-butylammonium p-nitrophenoxide
3002-48-0

tetra-n-butylammonium p-nitrophenoxide

Conditions
ConditionsYield
In 1,4-dioxane; water at 25℃; Equilibrium constant;
(4-hydroxy-1,2-dimethylpyrimidinium-5-yl)methanesulfonate

(4-hydroxy-1,2-dimethylpyrimidinium-5-yl)methanesulfonate

Conditions
ConditionsYield
With sodium hydroxide; sodium azide; sulfuric acid 1.) heating, 2 h .) heating, 2.5 h; Multistep reaction;
2-aminoethylthiosulfonic acid
2937-53-3

2-aminoethylthiosulfonic acid

Conditions
ConditionsYield
With sodium bromate; sodium perchlorate In water at 25℃; Product distribution; Mechanism; various reaction conditions;
With potassium iodate In water at 25℃; Mechanism;
2-[(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraen-(E)-ylideneamino]-ethanesulfonic acid

2-[(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraen-(E)-ylideneamino]-ethanesulfonic acid

A

Tau
107-35-7

Tau

B

all-trans-Retinal
116-31-4

all-trans-Retinal

Conditions
ConditionsYield
With phosphate buffer Rate constant; also hydrolysis in physiological solution and aq. EtOH;
hypotaurine
300-84-5

hypotaurine

Conditions
ConditionsYield
With chlorine dioxide; sodium perchlorate In water at 25℃; Rate constant; Mechanism;
hypotaurine
300-84-5

hypotaurine

A

Tau
107-35-7

Tau

B

N-chlorotaurine
51036-13-6

N-chlorotaurine

C

N-chlorohypotaurine

N-chlorohypotaurine

Conditions
ConditionsYield
With sodium perchlorate; hypochloric acid In water at 25℃; Rate constant; Mechanism;
1,3-thiazolidine
504-78-9

1,3-thiazolidine

bromine
7726-95-6

bromine

acetic acid
64-19-7

acetic acid

benzyl chloroformate
501-53-1

benzyl chloroformate

N-Benzyloxycarbonyl-taurine sodium salt
136027-16-2

N-Benzyloxycarbonyl-taurine sodium salt

Conditions
ConditionsYield
With sodium hydroxide a) 0 deg C, 30 min, b) 20 deg C, 2 h;100%
With sodium hydroxide In water for 0.5h;100%
With sodium hydroxide In 1,4-dioxane; water at 20℃; for 1h;82%
sodium taurinate
7347-25-3

sodium taurinate

Conditions
ConditionsYield
With sodium hydroxide In water at 60℃; Sonication;100%
With sodium hydrogencarbonate In water at 20℃; for 2h;100%
With sodium hydrogencarbonate In water
With sodium hydroxide In water
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

tetra(n-butyl)ammonium hydroxide
2052-49-5

tetra(n-butyl)ammonium hydroxide

tetrabutylammonium 2-((tert-butoxycarbonyl)amino)ethane-1-sulfonate

tetrabutylammonium 2-((tert-butoxycarbonyl)amino)ethane-1-sulfonate

Conditions
ConditionsYield
In water; acetone at 20℃;100%
In water; acetone at 20℃;100%
99%
In water; acetone at 20℃; for 12h;95%
In water; acetone at 25℃; for 16h;
4,6,4',6'-tetrachloro-2,2'-(3,6-dioxa-octane-1,8-diyldioxy)-bis-[1,3,5]triazine
36394-85-1

4,6,4',6'-tetrachloro-2,2'-(3,6-dioxa-octane-1,8-diyldioxy)-bis-[1,3,5]triazine

C16H22Cl2N8O10S2(2-)*2Na(1+)

C16H22Cl2N8O10S2(2-)*2Na(1+)

Conditions
ConditionsYield
With sodium carbonate In tetrahydrofuran; water at 0 - 20℃;100%
calcium taurine

calcium taurine

Conditions
ConditionsYield
With calcium hydroxide In water at 20℃; for 2h; Time; Reflux;100%
acrylonitrile
107-13-1

acrylonitrile

disodium salt of N-carboxyethyltaurine

disodium salt of N-carboxyethyltaurine

Conditions
ConditionsYield
With sodium hydroxide; nitrogen In water99.8%
acrylonitrile
107-13-1

acrylonitrile

potassium salt of cyanoethyltaurine

potassium salt of cyanoethyltaurine

Conditions
ConditionsYield
With potassium hydroxide In water99.1%
glycolonitrile
107-16-4

glycolonitrile

sodium cyanoethyl taurine

sodium cyanoethyl taurine

Conditions
ConditionsYield
With sodium hydroxide In water at 20℃; for 2h;98.6%
formaldehyd
50-00-0

formaldehyd

nitromethane
75-52-5

nitromethane

N-(2-nitroethyl)taurine

N-(2-nitroethyl)taurine

Conditions
ConditionsYield
In methanol at 70℃; for 4h; Temperature; Solvent; Mannich Aminomethylation; Green chemistry;98.5%
7,8-dihydroxy-chroman-2-one
90560-41-1

7,8-dihydroxy-chroman-2-one

C11H14NO7S(1-)*Na(1+)
1228675-83-9

C11H14NO7S(1-)*Na(1+)

Conditions
ConditionsYield
With water; sodium hydroxide In 1,4-dioxane at 0 - 20℃;98%
C24H28N2O8

C24H28N2O8

N-taurine
90990-60-6

N-taurine

Conditions
ConditionsYield
With sodium hydroxide at -10 - 0℃; for 8h;97.6%
copper(I) oxide

copper(I) oxide

1,10-phenanthroline-2,9-dicarboxaldehyde
57709-62-3

1,10-phenanthroline-2,9-dicarboxaldehyde

2Na(1+)*[Cu2(C12H6N2(CHNC2H4SO3)2)2](2-)=Na2[Cu2(C12H6N2(CHNC2H4SO3)2)2]

2Na(1+)*[Cu2(C12H6N2(CHNC2H4SO3)2)2](2-)=Na2[Cu2(C12H6N2(CHNC2H4SO3)2)2]

Conditions
ConditionsYield
With NaHCO3 In water (Ar or N2); a flask charged with 1,10-phenanthroline-2,9-dicarboxaldehyde, sulfanilic acid, Cu2O, NaHCO3, sealed, purified of O2, H2O added, sealed, stirred at room temp.; evapd. (vac.);97%
C18H32N2O8

C18H32N2O8

2-((S)-2,5-Bis-tert-butoxycarbonylamino-pentanoylamino)-ethanesulfonic acid

2-((S)-2,5-Bis-tert-butoxycarbonylamino-pentanoylamino)-ethanesulfonic acid

Conditions
ConditionsYield
With sodium hydroxide at 0 - 10℃; for 2h;96.9%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

2–((tert-butoxycarbonyl)amino)ethyl-1-sulfonic acid

2–((tert-butoxycarbonyl)amino)ethyl-1-sulfonic acid

Conditions
ConditionsYield
With sodium hydrogencarbonate In tetrahydrofuran; methanol at 10℃; for 24h; Temperature; Cooling with ice;96%
With sodium hydroxide; water In tetrahydrofuran for 15h; Ambient temperature; Yield given;
With sodium hydroxide In tetrahydrofuran; water at 20℃;
With dmap; triethylamine In dichloromethane at 0℃;
pyridine-2-carbaldehyde
1121-60-4

pyridine-2-carbaldehyde

copper(I) oxide

copper(I) oxide

methanol
67-56-1

methanol

Na(1+)*Cu(C5H4NCHNCH2CH2SO3)2(1-)*2CH3OH = Na(Cu(C5H4NCHNCH2CH2SO3)2)*2CH3OH

Na(1+)*Cu(C5H4NCHNCH2CH2SO3)2(1-)*2CH3OH = Na(Cu(C5H4NCHNCH2CH2SO3)2)*2CH3OH

Conditions
ConditionsYield
With sodium hydrogencarbonate; tert-butyl alcohol In water-d2 (Ar or N2); pyridine-2-carboxaldehyde, taurine, Cu2O, NaHCO3 added to flask; sealed; mag. stirring-bar added; water added; flask sealed; stirredfor 8 h at 22°C; volatiles removed under dynamic vac.; methanol and tert-butanol added; pptd.; crystals allowed to settle; supernatant removed with cannula filter; dried under dynamic vac. for 4 h; elem. anal.;96%
lithium 2-aminoethanesulfonate
117998-05-7

lithium 2-aminoethanesulfonate

Conditions
ConditionsYield
Stage #1: Tau With lithium hydroxide monohydrate In water at 20℃;
Stage #2: In toluene at 100℃; for 12h;
96%
C26H28N2O10

C26H28N2O10

C23H25N3O10S

C23H25N3O10S

Conditions
ConditionsYield
With potassium hydroxide In water at -10 - 0℃; for 6h;96%
(rac)-gossypol
303-45-7

(rac)-gossypol

megosin

megosin

Conditions
ConditionsYield
With sodium hydroxide In ethanol for 3h; Heating;95.8%
cholic acid
81-25-4

cholic acid

sodium taurocholate
145-42-6

sodium taurocholate

Conditions
ConditionsYield
Stage #1: Tau; cholic acid With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; triethylamine In N,N-dimethyl-formamide at 90℃; for 2h;
Stage #2: With sodium hydroxide In methanol at 20℃; for 1h;
95%
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; dimethyl sulfoxide; acetonitrile; tert-butyl alcohol at 20 - 80℃;88%
Deoxycholic acid
83-44-3

Deoxycholic acid

sodium taurodeoxycholate
1180-95-6

sodium taurodeoxycholate

Conditions
ConditionsYield
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; dimethyl sulfoxide; acetonitrile; tert-butyl alcohol at 20 - 80℃;95%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

tauroursodeoxycholic acid sodium salt
35807-85-3

tauroursodeoxycholic acid sodium salt

Conditions
ConditionsYield
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; acetonitrile; tert-butyl alcohol at 20 - 80℃;95%
(±)-gossypol acetic acid
5453-04-3, 866541-93-7, 1189561-66-7

(±)-gossypol acetic acid

megosin

megosin

Conditions
ConditionsYield
Stage #1: Tau With sodium hydroxide In ethanol for 1h; Reflux;
Stage #2: (±)-gossypol acetic acid In ethanol for 5h; Reflux;
94%
Stage #1: Tau With sodium hydroxide In ethanol for 1h; Reflux;
Stage #2: (±)-gossypol acetic acid In ethanol for 5h; Reflux;
94%
chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

sodium taurochenodeoxycholate
6009-98-9

sodium taurochenodeoxycholate

Conditions
ConditionsYield
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; acetonitrile; tert-butyl alcohol at 20 - 80℃;93%

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