138197-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138197-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,9 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138197-83:
(8*1)+(7*3)+(6*8)+(5*1)+(4*9)+(3*7)+(2*8)+(1*3)=158
158 % 10 = 8
So 138197-83-8 is a valid CAS Registry Number.
138197-83-8Relevant articles and documents
Facile redox formation of a 3-substituted maleimide from a 3-substituted N-hydroxysuccinimide
Groutas,Venkataraman,Brubaker,Tagusagawa
, p. 6093 - 6096 (1991)
Treatment of 3-(Phenylthio)-N-hydroxysuccinimide 1 with methanesulfonyl chloride and pyridine in dry toluene resulted in the formation of 3-(Phenylthio)maleimide 3a.