638990-46-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638990-46-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,9,9 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 638990-46:
(8*6)+(7*3)+(6*8)+(5*9)+(4*9)+(3*0)+(2*4)+(1*6)=212
212 % 10 = 2
So 638990-46-2 is a valid CAS Registry Number.
638990-46-2Relevant articles and documents
BENZOXAZOLE AND BENZODIAZOLE UV-A SUNSCREENS
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Page 21, (2008/06/13)
The present invention relates to 1,3- benzoxazole or benzodiazole UV-A sunscreens and to compositions, in particular topical compositions, containing the above UV-A sunscreens.
