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Vitamin B3 Structure

Vitamin B3

Chemical Properties

Melting point 128-131 °C(lit.)
Boiling point 150-160 °C
Density  1.40
vapor density  4.22 (vs air)
vapor pressure  0Pa at 25℃
refractive index  1.4660 (estimate)
Flash point 182 °C
storage temp.  2-8°C
solubility  691g/l
pka 3.3(at 20℃)
form  powder
color  white
PH 6.0-7.5 (50g/l, H2O, 20℃)
Odor Odorless
PH Range 9
Water Solubility  1000 g/L (20 ºC)
Decomposition  >=200 °C
Merck  14,6523
BRN  383619
BCS Class 1
Stability Stable. Incompatible with strong oxidizing agents.
InChIKey DFPAKSUCGFBDDF-UHFFFAOYSA-N
LogP -0.38 at 21℃
FDA 21 CFR 184.1535; 582.5535; 310.545
Substances Added to Food (formerly EAFUS) NIACINAMIDE
SCOGS (Select Committee on GRAS Substances) Niacinamide (nicotinamide)
CAS DataBase Reference 98-92-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 25X51I8RD4
NCI Dictionary of Cancer Terms niacinamide; nicotinamide; vitamin B3
NCI Drug Dictionary niacinamide
ATC code A11HA01
NIST Chemistry Reference Niacinamide(98-92-0)
EPA Substance Registry System Nicotinamide (98-92-0)
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Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H319
Precautionary statements P264-P280-P305+P351+P338-P337+P313
Hazard Codes  Xi,T,F
Risk Statements  36/37/38-39/23/24/25-23/24/25-11
Safety Statements  26-36-37/39-45-36/37-16-7
RIDADR  UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany  1
RTECS  QS3675000
F  8
Autoignition Temperature 480 °C
TSCA  Yes
HS Code  29362990
Hazardous Substances Data 98-92-0(Hazardous Substances Data)
Toxicity LD50 s.c. in rats: 1.68 g/kg (Brazda, Coulson)
NFPA 704:
1
2 0

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