155883-37-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155883-37-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,8 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155883-37:
(8*1)+(7*5)+(6*5)+(5*8)+(4*8)+(3*3)+(2*3)+(1*7)=167
167 % 10 = 7
So 155883-37-7 is a valid CAS Registry Number.
155883-37-7Relevant articles and documents
Preparation and reactions of 3H-pyrazolo[1,5-a]indole derivatives
Shen,Katayama
, p. 214 - 221 (2007/10/02)
3H-Pyrazolo[1,5-a]indole derivatives were prepared for the first time starting from 3-oxo-2-phenyl-3H-pyrazolo[1,5-a]indole, which was obtained by the 2,3-dichloro-4,5-dicyano-p-benzoquinone (DDQ) oxidation of 3-hydroxy-2- phenyl-3a,4-dihydro-3H-pyrazolo[
