215438-75-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215438-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,4,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 215438-75:
(8*2)+(7*1)+(6*5)+(5*4)+(4*3)+(3*8)+(2*7)+(1*5)=128
128 % 10 = 8
So 215438-75-8 is a valid CAS Registry Number.
215438-75-8Relevant articles and documents
A new approach to 5H-pyrrolo[3,2-d]pyrimidines (9-deazapurines) from 3- aminopyrrole-2-carboxylates
Selic?, Lovro,Stanovnik, Branko
, p. 1087 - 1092 (1999)
3-Amino-4-ethoxycarbonyl-1-methyl-1H-pyrrole-2-carboxylate (2) was used to prepare 9-deazapurines in a single step reaction.
