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69-79-4

Basic Information
CAS No.: 69-79-4
Name: Maltose
Article Data: 11
Molecular Structure:
Molecular Structure of 69-79-4 (Maltose)
Formula: C12H22O11
Molecular Weight: 342.3
Synonyms: Maltose(8CI);4-O-a-D-Glucopyranosyl-D-glucose;Advantose 100;D-(+)-Maltose;D-Maltose;Finetose;Finetose F;Flolys D 5780;MP 21;Malt sugar;Maltose HH;Maltose HHH;Maltose OM;Sunmalt;Sunmalt S;Maltose;
EINECS: 200-716-5
Density: 1.76 g/cm3
Melting Point: 110 °C
Boiling Point: 667.9 °C at 760 mmHg
Flash Point: 357.8 °C
Solubility: 310.3g/L(20 oC)
Appearance: colourless crystals or white powder
PSA: 189.53000
LogP: -5.39720
Synthetic route
Conditions
ConditionsYield
With Pullulanase-amylase complex enzyme; Tris buffer; calcium chloride In water at 50℃; for 24h;A 50.0 % Chromat.
B 5.1 % Chromat.
C 43.2 % Chromat.
With Pullulanase-amylase complex enzyme; tris buffer (pH 7.0) CaCl2 In water at 50℃; for 24h;A 53.9 % Chromat.
B 4.6 % Chromat.
C 36.2 % Chromat.
With Pullulanase-amylase complex enzyme; Tris buffer; calcium chloride In water at 50℃; for 24h;A 50.0 % Chromat.
B 5.1 % Chromat.
C 43.2 % Chromat.
Conditions
ConditionsYield
With Aspergillus niger amyloglucosidase at 40℃; for 3h; pH=6.5; aq. buffer; Enzymatic reaction;

α-D-glucopyranosyl-(1->6)-α-D-glucopyranosyl-(1->6)-α-D-glucopyranosyl-(1->4)-D-glucopyranose

A

499-40-1

isomaltose

B

69-79-4

D-maltose

Conditions
ConditionsYield
With Penicillium sp. dextranase at 40℃; for 0.5h; pH=6.5; aq. buffer; Enzymatic reaction;

α-D-glucopyranosyl-(1->6)-α-D-glucopyranosyl-(1->6)-α-D-glucopyranosyl-(1->4)-D-glucopyranose

69-79-4

D-maltose

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Aspergillus niger amyloglucosidase / 3 h / 40 °C / pH 6.5 / aq. buffer; Enzymatic reaction
2: Aspergillus niger amyloglucosidase / 3 h / 40 °C / pH 6.5 / aq. buffer; Enzymatic reaction
View Scheme
57-50-1

Sucrose

A

50-99-7

D-glucose

B

glucan, content of α-(1->4) linkage: 1.5%

glucan, content of α-(1->4) linkage: 1.5%

C

7158-70-5

leucrose

D

499-40-1

isomaltose

E

69-79-4

D-maltose

Conditions
ConditionsYield
With Leuconostoc mesenteroides B-1299CB4 dextransucrase DSRBCB4, triple mutant S642N/E643N/V644S; calcium chloride at 28℃; pH=5.2; aq. acetate buffer; Enzymatic reaction;
57-50-1

Sucrose

A

50-99-7

D-glucose

B

glucan, content of α-(1->4) linkage: 10.9%

glucan, content of α-(1->4) linkage: 10.9%

C

7158-70-5

leucrose

D

499-40-1

isomaltose

E

69-79-4

D-maltose

Conditions
ConditionsYield
With Leuconostoc mesenteroides B-1299CB4 dextransucrase DSRBCB4 mutant V532P/V535I/S642N/E643N/V644S; calcium chloride at 28℃; pH=5.2; aq. acetate buffer; Enzymatic reaction;
Conditions
ConditionsYield
Stage #1: β‐cyclodextrin With Thermoanaerobacter sp. cyclodextrin glucosyl transferase In aq. phosphate buffer at 50℃; for 24h; pH=6; Enzymatic reaction;
Stage #2: Enzymatic reaction;
2280-44-6

D-Glucose

A

57-48-7

D-Fructose

B

3458-28-4

D-Mannose

C

50-70-4

D-sorbitol

D

527-07-1

sodium D-gluconate

E

D-glucaric acid disodium salt

F

69-79-4

D-maltose

Conditions
ConditionsYield
With dihydrogen peroxide; sodium hydroxide In water at 50 - 60℃; Sealed tube;
Conditions
ConditionsYield
With wild-type recombinant sucrose phosphorylase from Bifidobacterium adolescentis In aq. buffer Enzymatic reaction;
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    Maltose CAS 69-79-4

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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

The Maltose, with the CAS registry number 69-79-4, is also known as Sunmalt. It belongs to the product categories of Disaccharide Molecular Biology; Biochemicals and Reagents; BioUltra Biochemicals and Reagents; BioUltraMolecular Biology; Carbohydrates; DNA & RNA Purification; Molecular Biology Reagents; Reagents. Its EINECS number is 200-716-5. This chemical's molecular formula is C12H22O11 and molecular weight is 342.30. What's more, its systematic name is 4-O-α-D-Glucopyranosyl-β-D-glucopyranose. Its classification codes are: (1)Drug / Therapeutic Agent; (2)Flavoring Agents; (3)Food Additives; (4)Human Data; (5)Natural Product; (6)Reproductive Effect; (7)Sweetening Agents; (8)Tumor data. This chemical is the second member of an important biochemical series of glucose chains. Maltose is the disaccharide produced when amylase breaks down starch. It is found in germinating seeds such as barley as they break down their starch stores to use for food. It is also produced when glucose is caramelized. This substance has the ability to reduce the Fehling’s solution, due to its free aldehyde. 

Physical properties of Maltose are: (1)ACD/LogP: 2.838; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.78; (4)ACD/LogD (pH 7.4): 1.65; (5)ACD/BCF (pH 5.5): 74.05; (6)ACD/BCF (pH 7.4): 5.45; (7)ACD/KOC (pH 5.5): 730.25; (8)ACD/KOC (pH 7.4): 53.76; (9)#H bond acceptors: 6; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 96.22 Å2; (13)Index of Refraction: 1.697; (14)Molar Refractivity: 76.53 cm3; (15)Molar Volume: 198.565 cm3; (16)Polarizability: 30.339×10-24cm3; (17)Surface Tension: 72.8 dyne/cm; (18)Density: 1.512 g/cm3; (19)Flash Point: 230.135 °C; (20)Enthalpy of Vaporization: 92.805 kJ/mol; (21)Boiling Point: 601.506 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
This chemical is harmful if swallowed. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it,
you need wear suitable protective clothing.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C\1c3c(O)c(OC)c(O)cc3O/C=C/1c2ccc(O)cc2
(2)Std. InChI: InChI=1S/C16H12O6/c1-21-16-11(18)6-12-13(15(16)20)14(19)10(7-22-12)8-2-4-9(17)5-3-8/h2-7,17-18,20H,1H3
(3)Std. InChIKey: OBBCRPUNCUPUOS-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 29100mg/kg (29100mg/kg)   Drugs in Japan Vol. -, Pg. 1139, 1990.
mouse LD50 intravenous 26800mg/kg (26800mg/kg) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE
Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979.
mouse LD50 oral > 44gm/kg (44000mg/kg)   Drugs in Japan Vol. -, Pg. 1139, 1990.
mouse LD50 subcutaneous 38600mg/kg (38600mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979.
rabbit LD50 intravenous 25200mg/kg (25200mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 541, 1972.
rat LD subcutaneous > 26700mg/kg (26700mg/kg) BEHAVIORAL: EXCITEMENT Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972.
rat LD50 intraperitoneal 30600mg/kg (30600mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972.
rat LD50 intravenous 15300mg/kg (15300mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Oyo Yakuri. Pharmacometrics. Vol. 6, Pg. 251, 1972.
rat LD50 oral 34800mg/kg (34800mg/kg) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Yakuri to Chiryo. Pharmacology and Therapeutics. Vol. 7, Pg. 53, 1979.
women TDLo oral 100mg/kg/2D-I (100mg/kg)   Annals of Internal Medicine. Vol. 118, Pg. 526, 1993.
women TDLo oral 100mg/kg/2D-I (100mg/kg) BLOOD: "CHANGES IN SERUM COMPOSITION (E.G., TP, BILIRUBIN, CHOLESTEROL)" Annals of Internal Medicine. Vol. 118, Pg. 526, 1993.

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