331971-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331971-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,9,7 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 331971-21:
(8*3)+(7*3)+(6*1)+(5*9)+(4*7)+(3*1)+(2*2)+(1*1)=132
132 % 10 = 2
So 331971-21-2 is a valid CAS Registry Number.
331971-21-2Relevant academic research and scientific papers
AMINO ACIDS
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Page/Page column 65-67, (2008/06/13)
Compounds of formula (I): Z’ -CO-A-B-NH-Z (I) wherein: Z is H or an amino protecting group; Z’ is OH, a protected or activated hydroxyl group or C1; A is an optionally substituted C5-6 arylene group; and B is an optionally substituted C5-6 arylene group.
