21113-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21113-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21113-05:
(7*2)+(6*1)+(5*1)+(4*1)+(3*3)+(2*0)+(1*5)=43
43 % 10 = 3
So 21113-05-3 is a valid CAS Registry Number.
21113-05-3Relevant articles and documents
Disubstituted proline derivatives
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, (2008/06/13)
The invention relates to compounds of the formula STR1 in which R1 and R2 are identical or different and represent alkyl or aryl or together form a C chain and R3 denotes alkyl or aryl, a process for their preparation and their use.