Title: Cinoxate
CAS Registry Number: 104-28-9
CAS Name: 3-(4-Methoxyphenyl)-2-propenoic acid 2-ethoxyethyl ester
Additional Names: p-methoxycinnamic acid 2-ethoxyethyl ester; 2-ethoxyethyl p-methoxycinnamate
Trademarks: Give-Tan (Givaudan); SunDare (Texas Pharmacal)
Molecular Formula: C14H18O4
Molecular Weight: 250.29
Percent Composition: C 67.18%, H 7.25%, O 25.57%
Literature References: Prepn: GB 856411 (1960 to Givaudan).
Properties: Viscous liq; bp2 184-187°. May have a slightly yellow tinge. Practically odorless. Solidifies below -25°. d2525 1.102. nD20 1.5670. Sapon no. 225.5. Practically insol in water (soly ~0.05%). Soly in glycerol 0.5%, in propylene glycol 5.0%. Miscible with alcohols, esters, vegetable oils.
Boiling point: bp2 184-187°
Index of refraction: nD20 1.5670
Density: d2525 1.102
Therap-Cat: Ultraviolet screen.
Keywords: Ultraviolet Screen.
Cinromide Cintredekin Besudotox Cioteronel Ciprofibrate Ciprofloxacin

CAS number 104-28-9 YesY
PubChem 5373773
ChemSpider 4523729 YesY
KEGG D03512 YesY
Jmol-3D images Image 1
Molecular formula C14H18O4
Molar mass 250.28 g/mol
Density 1.102 g/cm3
Melting point −25 °C
Boiling point 184−187 °C at 2 mmHg
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Cinoxate is an organic compound used as an ingredient in some types of sunscreens. It is an ester formed from methoxycinnamic acid and 2-ethoxyethanol. It is a slightly yellow viscous liquid that is insoluble in water, but miscible with alcohols, esters, and vegetable oils.

It protects skin against the sun by absorbing UV-A[citation needed] and UV-B rays.