174198-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 174198-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,1,9 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 174198-33:
(8*1)+(7*7)+(6*4)+(5*1)+(4*9)+(3*8)+(2*3)+(1*3)=155
155 % 10 = 5
So 174198-33-5 is a valid CAS Registry Number.
174198-33-5Relevant articles and documents
Facile synthesis of pyrazino[2,3-e][1,4]diazepine derivatives via the intramolecular aza-Wittig reaction
Okawa, Tomohiro,Eguchi, Shoji
, p. 81 - 84 (1996)
Pyrazino[2,3-d][1,4]diazepine derivatives were synthesized from 3-aminopyrazine-2-carboxylic acid 1 and α-amino acid esters via the intramolecular aza-Wittig reaction.
