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R4632

Retinyl acetate

Name: Retinyl acetate
Brand: SIGMA

synthetic, crystalline solid or supercooled liquid

Synonym(s):

Retinol acetate, Vitamin A acetate

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About This Item

Empirical Formula (Hill Notation):

C₂₂H₃₂O₂

CAS Number:

127-47-9

Molecular Weight:

328.49

NACRES:

NA.79

PubChem Substance ID:

57654592

eCl@ss:

34058009

UNSPSC Code:

12352205

EC Number:

204-844-2

MDL number:

MFCD00019413

Beilstein/REAXYS Number:

1915439

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Properties

biological source

synthetic

Quality Segment

300

assay

≥90% (HPLC)

form

crystalline solid or supercooled liquid

potency

2,600,000-2,940,000 I.U. per g

color

light yellow to dark yellow

mp

57-58 °C, ~58 °C (lit.)

storage temp.

−20°C

SMILES string

CC1=C(/C=C/C(C)=C/C=C/C(C)=C/COC(C)=O)C(C)(C)CCC1

InChI

1S/C22H32O2/c1-17(9-7-10-18(2)14-16-24-20(4)23)12-13-21-19(3)11-8-15-22(21,5)6/h7,9-10,12-14H,8,11,15-16H2,1-6H3/b10-7+,13-12+,17-9+,18-14+

InChI key

QGNJRVVDBSJHIZ-QHLGVNSISA-N

Description

General description

Vitamin A usually occurs in food as retinyl esters, which are the pre-formed sources of vitamin A. Retinyl acetate exists as yellow crystals and is insoluble in water. It is soluble in ethanol and oils.

Application

Retinyl acetate has been used:

to study its effects on cochlear development in mice
as a component of an internal standard to quantify antioxidants in yolk
as an internal standard to determine serum retinol concentration

Biochem/physiol Actions

Retinal, retinol and retinoic acid are the aldehyde, alcohol and acid forms of vitamin A. The retinoids exist as many geometric isomers due to the unsaturated bonds in the aliphatic chain.
Retinoids also exist as retinyl esters such as retinyl propionate, retinyl acetate and retinyl palmitate. Retinyl esters provide pools of vitamin A that are converted into retinol and other retinoids as needed. Retinyl acetate is used in a wide range of biological applications.

Physical form

Packaged as a melt and may exist as a crystalline solid or a supercooled viscous liquid

Analysis Note

Activity based on HPLC comparison to USP standard.

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Pictograms

GHS08

Signal Word

Danger

Hazard Codes

H360D,H413

Precautionary Statements

P202 - P273 - P280 - P308 + P313 - P405 - P501

Hazard Classifications

Aquatic Chronic 4 - Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)