132911-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132911-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,9,1 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 132911-19:
(8*1)+(7*3)+(6*2)+(5*9)+(4*1)+(3*1)+(2*1)+(1*9)=104
104 % 10 = 4
So 132911-19-4 is a valid CAS Registry Number.
132911-19-4Relevant articles and documents
Nucleophilic Chlorination of 3-Formyl-4-hydroxy-quinolin-2(1H)-ones
Fiala, Werner,Stadlbauer, Wolfgang
, p. 128 - 134 (2007/10/02)
Chlorination of 1-substituted 3-formyl-4-hydroxy-2-quinolones (1a, b) with phosphorylchloride leads to 4-chloro-3-dichloromethylquinolones (2), which can be hydrolyzed to 4-chloro-3-formylquinolones (4).From the anilinomethylene quinolinediones (3), at lo
