L-Ascorbic acid
time:2012-10-15 17:04:11,count:0

L-Ascorbic acid
Alias
Ascorbic acid
Vitamin C
L-threo-Hex-2-enonic acid, gamma-lactone
Category
Non-ionic surfactants-Esters
CAS No.
50-81-7
Molecular Formula & Molecular Weight
Molecular Formula: C6H8O6
Molecular Weight: 176.12
Structural Formula
Properties
Appearance: white powder.
Solubility: soluble in water.
Stability: stable. easily oxidized.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: rat oral LD50: 11900mg/Kg; mouse oral LD50: 3367mg/Kg.
Human toxicity[1]: man intravenous TDLo: 2300mg/Kg/2D; women intravenous LDLo: 900mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent anti-oxidizing, preservative abilities. Essential vitamin.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Use as pharmaceutical ingredient, nutrients.
Use as antioxidant.
Antioxidant, buffering agent, masking agent, conditioning agent, skin protective agent in personal care products. good whitening effect.
Use as preservative, UV absorbing agent.
Use as food additive.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/:50-81-7
Update: 20141016(1);