123149-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123149-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,1,4 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123149-91:
(8*1)+(7*2)+(6*3)+(5*1)+(4*4)+(3*9)+(2*9)+(1*1)=107
107 % 10 = 7
So 123149-91-7 is a valid CAS Registry Number.
123149-91-7Relevant articles and documents
Ring Cleavage of 1,2,3-Triazolium Ions with Nucleophiles
Moderhack, Dietrich
, p. 1271 - 1274 (2007/10/02)
The 1,2,3-triazolium salts 1 react with a variety of nucleophiles to give products of ring scission like 2-5.The new 1,2,3-triazolium reaction most probably does not follow the pattern known in the case of isoxazolium and furazanium salts.
