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Pyridoxine hydrochloride
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Name

Pyridoxine hydrochloride

 EINECS 200-386-2
CAS No. 58-56-0 Density 1.2784 (rough estimate)
PSA 73.58000 LogP 0.88220
Solubility 0.1 g/mL at 20 °C in water Melting Point 214-215 °C(lit.)
Formula C8H11NO3.ClH Boiling Point 491.9 °C at 760 mmHg
Molecular Weight 205.641 Flash Point 251.3 °C
Transport Information N/A Appearance Crystalline
Safety 26-37/39 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 58-56-0 (Pyridoxine hydrochloride) Hazard Symbols IrritantXi
Synonyms

3,4-Pyridinedimethanol,5-hydroxy-6-methyl-, hydrochloride (9CI);Pyridoxol, hydrochloride (7CI,8CI);2-Methyl-3-hydroxy-4,5-bis(hydroxymethyl)pyridine hydrochloride;4,5-Bis(hydroxymethyl)-2-methylpyridin-3-olhydrochloride;4,5-Bis(hydroxymethyl)-3-hydroxy-2-methylpyridine hydrochloride;5-Hydroxy-6-methyl-3,4-pyridinedimethanol hydrochloride;Aderomine hydrochloride;Aderoxin;Aderoxine;Hexabetalin;Hexavibex;Pyridipca;Pyridox;Pyridoxin hydrochloride;Pyridoxine chloride;

Article Data 26

Pyridoxine hydrochloride Synthetic route

10030-93-0

pyridoxine triacetate

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In water for 2h; Heating;98%
With hydrogenchloride; water for 2h; Heating / reflux;72%
2397-71-9

5-hydroxy-6-methylpyridine-3,4-dicarboxylic acid diethyl ester

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 5-hydroxy-6-methylpyridine-3,4-dicarboxylic acid diethyl ester With sodium tetrahydroborate; iron(II) sulfate; N,N-dimethyl-aniline In tetrahydrofuran for 4h; Reflux;
Stage #2: With hydrogenchloride In tetrahydrofuran at 20℃; Reagent/catalyst; Solvent;		93.4%

4,5-dihydroxymethyl-2-methyl-2-cyclopentenone

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 4,5-dihydroxymethyl-2-methyl-2-cyclopentenone With ozone In methanol; water at -30℃; for 3h;
Stage #2: With ammonia In methanol; water at 20 - 25℃; for 3h;
Stage #3: With hydrogenchloride; pyrographite In ethanol at 55 - 60℃; for 1h; Temperature; Solvent;		92%

2-hydroxymethyl-3-cyano-4-hydroxy-n-butyraldehyde

13515-97-4

methyl 2-aminopropanoate monohydrochloride

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 2-hydroxymethyl-3-cyano-4-hydroxy-n-butyraldehyde; methyl 2-aminopropanoate monohydrochloride With sodium methylate In methanol at 30 - 50℃; for 5h; Green chemistry;
Stage #2: With hydrogenchloride In methanol; water for 2h; Temperature; Solvent; Reagent/catalyst; Reflux; Green chemistry;		90.5%

4-methyl-5-dimethyl-tert-butylsiloxyoxazole

4469-34-5

2-propyl-4,7-dihydro-2H-1,3-dioxepine

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 4-methyl-5-dimethyl-tert-butylsiloxyoxazole; 2-propyl-4,7-dihydro-2H-1,3-dioxepine at 115 - 120℃; for 10h;
Stage #2: With water In ethanol at 20℃; for 3h;
Stage #3: With hydrogenchloride In ethanol; water at 20℃; for 2h;		89.5%
5205-63-0

Diels-Alder adduct

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: Diels-Alder adduct With hydrogenchloride In ethanol; water at 20℃; for 2h;
Stage #2: In ethanol; water for 2h;		86.05%

C8H13NO4

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; pyrographite In ethanol; water at 75 - 78℃; for 3h; Temperature;83.5%

4-methyl-5-triisopropylsiloxyoxazole

4469-34-5

2-propyl-4,7-dihydro-2H-1,3-dioxepine

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 4-methyl-5-triisopropylsiloxyoxazole; 2-propyl-4,7-dihydro-2H-1,3-dioxepine at 115 - 120℃; for 10h;
Stage #2: With water In ethanol at 20℃; for 3h;
Stage #3: With hydrogenchloride In ethanol; water at 20℃; for 2h;		82.7%
4469-34-5

2-propyl-4,7-dihydro-2H-1,3-dioxepine

24201-52-3

4-methyl-5-butoxy1,3-oxazole

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
Stage #1: 2-propyl-4,7-dihydro-2H-1,3-dioxepine; 4-methyl-5-butoxy1,3-oxazole With calcium oxide at 150℃; for 12h; Diels-Alder Cycloaddition;
Stage #2: With hydrogenchloride In ethanol; water at 20 - 60℃; for 12h;
Stage #3: With hydrogenchloride In water for 1h; pH=8; Reagent/catalyst; Reflux;		80%
5006-20-2

5-ethoxy-4-methyl-oxazole

4469-34-5

2-propyl-4,7-dihydro-2H-1,3-dioxepine

58-56-0

pyridoxal hydrochloride

Conditions
ConditionsYield
With hydrogenchloride Diels-Alder Cycloaddition;78.5%

Pyridoxine hydrochloride Chemical Properties

 
IUPAC Name: 4,5-Bis(hydroxymethyl)-2-methylpyridin-3-ol hydrochloride
Molecular Formula: C8H12ClNO3
Molecular Weight: 205.64 g/mol
SMILES: c1(c(cnc(c1O)C)CO)CO.Cl
InChI: InChI=1/C8H11NO3.ClH/c1-5-8(12)7(4-11)6(3-10)2-9-5;/h2,10-12H,3-4H2,1H3;1H
EINECS: 200-386-2
Classification Code: Drug / Therapeutic Agent; Human Data; Mutation data; Reproductive Effect; Vitamin [enzyme co-factor] 
Product Categories: Biochemistry; Pyridinium Compounds; Vitamins; Nutritional Supplements; Vitamins and derivatives; Aromatics; Heterocycles; Vitamin Ingredients
Flash Point: 251.3 °C 
Enthalpy of Vaporization: 79.91 kJ/mol 
Boiling Point: 491.9 °C at 760 mmHg 
Melting Point: 214-215 °C(lit.)
storage temperature: 2-8 °C
solubility: H2O: 0.1 g/mL at 20 °C, clear, colorless
Sensitive: Light Sensitive
Stability: Stable. Protect from air and light.
Vapour Pressure of Pyridoxine hydrochloride (CAS NO.58-56-0): 1.71E-10 mmHg at 25 °C

Pyridoxine hydrochloride Uses

 Pyridoxine hydrochloride (CAS NO.58-56-0)  is widely used in pharmaceutical ,food and feed additives and also could be used in the cosmetics .

Pyridoxine hydrochloride Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LD50 intramuscular 500mg/kg (500mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
cat LD50 intravenous 560mg/kg (560mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
cat LD50 oral 1gm/kg (1000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
dog LD50 oral > 500mg/kg (500mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
mouse LD50 intravenous 660mg/kg (660mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
mouse LD50 oral 5500mg/kg (5500mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
mouse LD50 subcutaneous 2450mg/kg (2450mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
pigeon LD50 intravenous 145mg/kg (145mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
rabbit LD50 intravenous 464mg/kg (464mg/kg) PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
rat LD50 intravenous 530mg/kg (530mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
rat LD50 oral 4gm/kg (4000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.
rat LD50 subcutaneous 3gm/kg (3000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: EXCITEMENT		 Arzneimittel-Forschung. Drug Research. Vol. 11, Pg. 922, 1961.

Pyridoxine hydrochloride Consensus Reports

Reported in EPA TSCA Inventory.

Pyridoxine hydrochloride Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39: Wear suitable gloves and eye/face protection.
WGK Germany: 2
RTECS of Pyridoxine hydrochloride (CAS NO.58-56-0): UV1350000

Pyridoxine hydrochloride Specification

 Pyridoxine hydrochloride (CAS NO.58-56-0), its Synonyms are 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl-, hydrochloride ; 5-Hydroxy-6-methyl-3,4-pyridinedimethanol hydrochloride ; Vitamin B6 hydrochloride ; 2-Methyl-3-hydroxy-4,5-bis(hydroxymethyl)pyridine hydrochloride ; 3-Hydroxy-4,5-dihydroxymethyl-2-methylpyridine hydrochloride ; 3-Hydroxy-4,5-dimethylol-alpha-picoline hydrochloride ; 4,5-Bis(hydroxymethyl)-2-methylpyridin-3-ol hydrochloride ; Aderomine hydrochloride ; 3,4-Pyridinedimethanol, 5-hydroxy-6-methyl-, hydrochloride (1:1) . It is crystalline.

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