134305-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134305-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134305-19:
(8*1)+(7*3)+(6*4)+(5*3)+(4*0)+(3*5)+(2*1)+(1*9)=94
94 % 10 = 4
So 134305-19-4 is a valid CAS Registry Number.
134305-19-4Relevant articles and documents
?-SUBSTITUTION (ADDITION-ELIMINATION) IN PYRROLES: REACTION OF N-CHLORO-N-(4-SUBSTITUTED-PHENYL)BENZENESULPHONAMIDES WITH 1-METHYLPYRROLE
Rosa, Michael de,Nieto, Gustavo Cabrera
, p. 73 - 74 (2007/10/02)
The reaction of 1-methylpyrrole with N-chloro-N-(4-substituted-phenyl)-benzenesulphonamides leads to the attachment of the sulphonamide moiety to the pyrrole ring by ?-substitution (addition-elimination).
