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Aako BV
P.O. Box 205
3830 AE Leusden
The Netherlands
KvK 31009627

AakoSun OCR

CAS number:
EINECS number:
Organic UV filters
Technical datasheet
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Product description


USAN Octocrylene
Chemical names 2-Ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate
2-Ethylhexyl-2-cyano-3,3-diphenyl acrylate
Formula C24H27NO2; MW 361,5 g/mol
UVB Absorber Oil soluble


AakoSun OCR is an oil-soluble UV-B filter that is approved use in sun-care preparations in many countries worldwide. As it is miscible with many cosmetic oils, it can readily be incorporated in the oily phase of emulsions. Because of its hydrophobic nature and its solubility in oil, it is particularly suitable for water-repellent and water-resistant formulations. It can be combined with other oil-soluble UV filters such as AakoSun BP3 (Benzophenone 3) to give products with a high SPF. AakoSun OCR also has excellent stability to light.

Analytical data


Assay (GC) 95,0% - 105,0%
Acidity (0.1 mol/L NaOH) 0.18 max ml/g
Color (Gardner) 3 max
Refractive Index 1.561-1.571 at 20°C
Specific Gravity 1.045-1.055
Residual Solvent Max 500 ppm 2-ethylhexanol
Chromatographic Impurity Any individual impurity Max 0.5 (area %)
  The sum of all impurities Max 2.0 (area %)
Appearance Clear yellow viscous liquid
Storage At room temperature (protect from direct sunlight).
Shelf Life 2 Years from manufacturer date


Regulatory status


EU Max. 10% expressed as acid
listed in Council Directive 76/768/EEC, annex vii, part 1 no.10
USA up to 10% alone or 7-10% in combination with other category I sunscreens (FDA/OTC Category I)
Japan Max. 10% (listed MHLW)


Other names: Uvinul N539T, Parsol 340, Eusolex OCR

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Aako BV
P.O. Box 205
3830 AE Leusden
The Netherlands
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