Ascorbyl Palmitate CAS 137-66-6 C22H38O7

L-Ascorbyl palmitate, also known as ascorbic acid-6-palmitate or palmitic acid ester, is a white or yellow white powder with a slight citrus aroma. According to the “Hygienic Standards for the Use of Food Additives” in China, L-ascorbyl palmitate can be used for edible oils, oily foods, instant noodles, and bread, with a maximum dosage of 0.2g/kg.

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Description

Ascorbyl Palmitate Basic information
Product Name:	Ascorbyl Palmitate
CAS:	137-66-6
MF:	C22H38O7
MW:	414.53
EINECS:	205-305-4
Mol File:	137-66-6.mol
Ascorbyl Palmitate Chemical Properties
Melting point	115-118 °C(lit.)
alpha	+21～+26°(20℃/D, c=2, C2H5OH)
Boiling point	512.7±50.0 °C(Predicted)
density	1.150±0.06 g/cm3(Predicted)
refractive index	22.5 ° (C=1, EtOH)
storage temp.	2-8°C
solubility	Slightly soluble in ethyl alcohol.
pka	3.96±0.10(Predicted)
form	Solid
color	White to Pale Gray
Odor	wh. or yel.-wh. powd., citrus odor
Optical Rotation	[α]20/D +23±1°, c = 1% in ethanol
biological source	synthetic
BRN	96552
Henry’s Law Constant	7.0×101 mol/(m3Pa) at 25℃, HSDB (2015)
Major Application	pharmaceutical (small molecule)
Cosmetics Ingredients Functions	FRAGRANCE
Cosmetics Ingredients Functions	ANTIOXIDANT
Cosmetic Ingredient Review (CIR)	Ascorbyl Palmitate (137-66-6)
InChI	1S/C22H38O7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18(24)28-16-17(23)21-19(25)20(26)22(27)29-21/h17,21,23,25-26H,2-16H2,1H3/t17-,21+/m0/s1
InChIKey	QAQJMLQRFWZOBN-UWJYYQICSA-N
SMILES	CCCCCCCCCCCCCCCC(=O)OC[C@H](O)[C@H]1OC(=O)C(O)=C1O
LogP	6.5 at 30℃ and pH1.9
CAS DataBase Reference	137-66-6(CAS DataBase Reference)
EPA Substance Registry System	Ascorbyl palmitate (137-66-6)

Application:

Food antioxidant
Food nutritional fortifier
Meat product color protection and preservative
Feed antioxidant
Cosmetic additive
Beer and beverage antioxidant

Safety profile:

This product is a non-toxic and safe ingredient that is good for the skin when used in small quantities. It is also non-sensitizing but can be mildly irritating for sensitive skin. A patch test is, therefore, recommended. This product is also safe for the environment and may or may not be considered vegan – depending upon its source.

Storage requirements:

keep the product dry

relative humidity < 50%

protect product against influences of weather and contamination

Transport & Packaging:

This product for technical applications is solely supplied in packaging of different sizes . It can be packaged in various items: 25 kg drums, 1000 kg IBC drums.