136970-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136970-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 136970-31:
(8*1)+(7*3)+(6*6)+(5*9)+(4*7)+(3*0)+(2*3)+(1*1)=145
145 % 10 = 5
So 136970-31-5 is a valid CAS Registry Number.
136970-31-5Relevant articles and documents
The First Synthesis of Se-Methyl Carboxylic Thionoselenolesters
Khalid, Mohamed,Ripoll, Jean-Louis,Vallee, Yannick
, p. 964 - 965 (2007/10/02)
Reaction of carboxylic thionoesters with dimethylaluminium methylselenolate in diethyl ether gave the corresponding Se-methyl thionoselenolesters in 87-98percent yield.
