1328921-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1328921-48-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,2,8,9,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1328921-48:
(9*1)+(8*3)+(7*2)+(6*8)+(5*9)+(4*2)+(3*1)+(2*4)+(1*8)=167
167 % 10 = 7
So 1328921-48-7 is a valid CAS Registry Number.
1328921-48-7Relevant articles and documents
Process for Preparing Entecavir and its Intermediates
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Page/Page column 10, (2011/09/14)
A process of making entecavir comprising converting a compound of formula (M5) to entecavir, wherein the two PGs on the formula (M5) are taken together to form an optionally substituted six- or seven-member cyclic ring.
