1515921-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1515921-03-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,1,5,9,2 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1515921-03:
(9*1)+(8*5)+(7*1)+(6*5)+(5*9)+(4*2)+(3*1)+(2*0)+(1*3)=145
145 % 10 = 5
So 1515921-03-5 is a valid CAS Registry Number.
1515921-03-5Relevant articles and documents
Regioselective synthesis of 1,3,5-Trisubstituted Pyrazoles from N-Alkylated Tosylhydrazones and terminal Alkynes
Kong, Yuanfang,Tang, Meng,Wang, Yun
, p. 576 - 579 (2014)
An efficient synthesis of 1,3,5-trisubstituted pyrazoles from Nalkylated tosylhydrazones and terminal alkynes was developed. The protocol was applied to a wide range of substrates and demonstrated excellent tolerance to a variety of substituents, includin
