1349659-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1349659-53-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,9,6,5 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1349659-53:
(9*1)+(8*3)+(7*4)+(6*9)+(5*6)+(4*5)+(3*9)+(2*5)+(1*3)=205
205 % 10 = 5
So 1349659-53-5 is a valid CAS Registry Number.
1349659-53-5Relevant articles and documents
PROCESS FOR THE PREPARATION OF HIGHLY PURE BEXAROTENE
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Page/Page column 19, (2011/12/02)
The present invention provides an improved process for the preparation of highly pure bexarotene of formula (I). The present invention also provides impurities of bexarotene, method of isolation and identification of these impurities, and use of these impurities as reference marker as well as reference standard.