91539-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91539-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91539-81:
(7*9)+(6*1)+(5*5)+(4*3)+(3*9)+(2*8)+(1*1)=150
150 % 10 = 0
So 91539-81-0 is a valid CAS Registry Number.
91539-81-0Relevant articles and documents
A NEW "ONE FLASK" PREPARATION OF 2-ALKYLAMINO-4-CHLOROQUINAZOLINES FROM ORTHO AMINOBENZONITRILES AND PHOSGENIMINIUM SALTS
Kokel, Bruno,Menichi, Gabriel,Hubert-Habart, Michel
, p. 1557 - 1560 (2007/10/02)
Phosgeniminium salts react easily with ortho amino-benzonitriles to give, selectively and quantitatively the corresponding 2-dialkylamino-4-chloroquinazolines.