147295-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 147295-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,2,9 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 147295-20:
(8*1)+(7*4)+(6*7)+(5*2)+(4*9)+(3*5)+(2*2)+(1*0)=143
143 % 10 = 3
So 147295-20-3 is a valid CAS Registry Number.
147295-20-3Relevant articles and documents
Synthesis of 5H-Thienopyrrole
Sha, Chin-Kang,Tsou, Chiu-Peng
, p. 310 - 311 (2007/10/02)
5H-Thienopyrrole (4) was synthesized by a novel phosphineimine-alkylidenemalonate cyclization reaction.