19871-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19871-33-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,7 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19871-33:
(7*1)+(6*9)+(5*8)+(4*7)+(3*1)+(2*3)+(1*3)=141
141 % 10 = 1
So 19871-33-1 is a valid CAS Registry Number.
19871-33-1Relevant academic research and scientific papers
REACTION OF N-ARYLSULFONAMIDES WITH NITROSATING AGENTS
Zakatov, V. V.,Dubina, V. L.,Gladshtein, I. Ya.
, p. 540 - 542 (2007/10/02)
Only the mononitro derivatives are formed by the action of nitrosating agents on N-arylsulfonamides containing halogen atom and alkoxy and alkyl groups in the amide ring.The nature of the effect and the directing action of the substituents are discussed a
