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Octinoxate

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Octinoxate is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Octinoxate (Wikipedia)

Octyl methoxycinnamate or ethylhexyl methoxycinnamate (INCI) or octinoxate (USAN), trade names Eusolex 2292 and Uvinul MC80, is an organic compound that is an ingredient in some sunscreens and lip balms. It is an ester formed from methoxycinnamic acid and 2-ethylhexanol. It is a liquid that is insoluble in water.

Octyl methoxycinnamate
Names
IUPAC name
(RS)-2-Ethylhexyl (2E)-3-(4-methoxyphenyl)prop-2-enoate
Other names
Ethylhexyl methoxycinnamate
Octinoxate
Uvinul MC80
(E)-3-(4-methoxyphenyl) prop-2-enoic acid 2-ethylhexyl ester
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.157.824 Edit this at Wikidata
EC Number
  • 629-661-9
KEGG
UNII
  • InChI=1S/C18H26O3/c1-4-6-7-15(5-2)14-21-18(19)13-10-16-8-11-17(20-3)12-9-16/h8-13,15H,4-7,14H2,1-3H3/b13-10+ checkY
    Key: YBGZDTIWKVFICR-JLHYYAGUSA-N checkY
  • InChI=1/C18H26O3/c1-4-6-7-15(5-2)14-21-18(19)13-10-16-8-11-17(20-3)12-9-16/h8-13,15H,4-7,14H2,1-3H3/b13-10+
    Key: YBGZDTIWKVFICR-JLHYYAGUBM
  • O=C(OCC(CC)CCCC)\C=C\c1ccc(OC)cc1
Properties
C18H26O3
Molar mass 290.403 g·mol−1
Density 1.01 g/cm3
Melting point −25 °C (−13 °F; 248 K)
Boiling point 198 to 200 °C (388 to 392 °F; 471 to 473 K)
Pharmacology
D02BA02 (WHO)
Legal status
  • Banned in Thailand, Palau and Hawaii
Hazards
GHS labelling:[1]
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H315, H319, H335, H411
P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It is primarily used in sunscreens and other cosmetics to absorb UV-B rays from the sun, protecting the skin from damage. It is also used to reduce the appearance of scars.

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