140870-08-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140870-08-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,7 and 0 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 140870-08:
(8*1)+(7*4)+(6*0)+(5*8)+(4*7)+(3*0)+(2*0)+(1*8)=112
112 % 10 = 2
So 140870-08-2 is a valid CAS Registry Number.
140870-08-2Relevant articles and documents
A remarkable rearrangement during reaction between triazolopyridinium ylides and dimethyl acetylenedicarboxylate
Abarca,Ballesteros,Metni,Jones,Ando,Hursthouse
, p. 4977 - 4980 (1991)
The ylides from 2-acylmethyltriazolopyridinium salts (1) react with dimethyl acetylenedicarboxylate in toluene solution to give the 7-pyrroleninylpyrazolo[1,5-a]pyridines (5).
