Product Identification

Product Name

2-Methyl-3-hydroxy-4,5-dihydroxymethylpyridine

Synonyms

2-Methyl-4,5-bis(hydroxymethyl)-3-hydroxypyridine
3-Hydroxy-4,5-dimethylol-alpha-picoline
4,5-Bis(hydroxymethyl)-2-methylpyridin-3-ol
5-Hydroxy-6-methyl-3,4-pyridinedimethanol
Pyridoxol
Vitamin B6

CAS

65-23-6

Formula

C8H11NO3

Molecular Weight

169.2

EINECS

200-603-0

RTECS

UV1300000

RTECS Class

Drug; Reproductive Effector; Human Data

Beilstein/Gmelin

139854

Beilstein Reference

5-21-05-00492

Physical and Chemical Properties

Solubility in water

120 g/l (20 C)

Melting Point

156 - 157

Vapor Pressure

1.7E-10 (25 C)

Density

1.38 g/cm3 (20 C)

pKa/pKb

8.37 (pKa)

Heat Of Vaporization

79.9 kJ/mol

Usage

Vitamin b6.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water.

Eyes

In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage

Storage

Keep tightly closed. Store in a cool dry place.

Hazards Identification

Inhalation

Material is irritating to mucous membranes and upper respiratory tract.

Skin

Causes irritation.

Eyes

Causes irritation.

Ingestion

Causes irritation.

EC Risk Phrase

36/37/38

EC Safety Phrase

26 36

Exposure Controls/Personal Protection

Personal Protection

Wear respirator, chemical safety goggles, rubber boots, and heavy rubber gloves.Do not breathe dust. Avoid contact with eye, skin, and clothing.

Respirators

Government approved respirator.

Exposure Effects

People who have consumed more than 2000 mg on a daily basis have experienced a toxic sensory neuropathy. Withdrawal from 200 mg daily has produced dependency symptoms. To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.

Poison Class

F

Fire Fighting Measures

Flash Point

251

Fire Fighting

Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes. Extinguish fire using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam.

Stability and Reactivity

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide, Nitrogen oxides.

Combustion Products

Emits toxic fumes under fire conditions.

Transport Information

HS Code

2936 25 00