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Sigma-Aldrich

L-Ascorbic acid

FCC, FG

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Synonym(s):
L-AA, L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
Empirical Formula (Hill Notation):
C6H8O6
CAS Number:
50-81-7
Molecular Weight:
176.12
FEMA Number:
2109
Beilstein:
84272
EC Number:
200-066-2
MDL number:
MFCD00064328
PubChem Substance ID:
24900863
NACRES:
NA.21

biological source

synthetic

grade

FG
Fragrance grade

Agency

follows IFRA guidelines

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 117
FDA 21 CFR 182.3013
FDA 21 CFR 182.8013

Assay

99.0-100.5% (iodometric)

form

crystalline
powder or crystals

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

color

white

pH

1.0-2.5 (25 °C, 176 g/L in water)

mp

190-194 °C (dec.)

solubility

water: soluble 176 g/L at 20 °C

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

green

SMILES string

OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O

InChI

1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1

InChI key

CIWBSHSKHKDKBQ-JLAZNSOCSA-N

Gene Information

human ... SLC23A2(9962)

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General description

L-Ascorbic acid, an organic acid, is found abundantly in citrus fruits. It is generally used as an antioxidant and pH adjuster in the cosmetic industry. L-AA is also used as a preservative and nutrient supplement in foods.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Differential transcriptional regulation of L-ascorbic acid content in peel and pulp of citrus fruits during development and maturation
Alos E, et al.
Planta, 239(5), 1113-1128 (2014)
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as used in cosmetics.
Elmore AR.
International Journal of Toxicology, 24, 51-111 (2005)
Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients, 113-113 (2012)
Flow injection spectrophotometric determination of L-ascorbic acid in pharmaceutical formulations with on-line solid-phase reactor containing copper (II) phosphate
Pereira AV and Fatibello-Filho O
Analytica Chimica Acta, 366(1-3), 55-62 (1998)
A rapid method for the determination of total L-ascorbic acid in fruits and vegetables by micellar electrokinetic capillary chromatography
Thompson CO and Trenerry VC
Food Chemistry, 53(1), 43-50 (1995)
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