Pyridoxine

  • Vitamin B6
  • Pyridoxol
  • 3-Hydroxy-4,5-dimethylol-alpha-picoline
  • 5-Hydroxy-6-methyl-3,4-pyridinedimethanol
  • 2-Methyl-4,5-bis(hydroxymethyl)-3-hydroxypyridine
Formula
C8H11NO3
Structure
Uses
Vitamin B6.

Registry Numbers and Inventories.
CAS
65-23-6
EC (EINECS/ELINCS)
200-603-0
36/37/38
RTECS
UV1300000
RTECS class
Drug; Reproductive Effector; Human Data
Beilstein/Gmelin
139854
Beilstein Reference
5-21-05-00492
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H11NO3
Formula mass
169.20
Melting point, °C
156 - 157
Vapor pressure, mmHg
1.7E-10 (25 C)
Density
1.38 g/cm3 (20 C)
Solubility in water
120 g/l (20 C)
pKa/pKb
8.37 (pKa)
Heat of vaporization
79.9 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
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.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides.

Fire.
Flash Point,°C
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.
Combustion products
Emits toxic fumes under fire conditions.

Health.
Poison_Class
F
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.
   Ingestion
Causes irritation.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract.
   Skin
Causes irritation.
   Eyes
Causes irritation.

First aid
 
   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.

Transport.
HS Code
2936 25 00