183657-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183657-92-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,6,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 183657-92:
(8*1)+(7*8)+(6*3)+(5*6)+(4*5)+(3*7)+(2*9)+(1*2)=173
173 % 10 = 3
So 183657-92-3 is a valid CAS Registry Number.
183657-92-3Relevant articles and documents
DTBB-catalysed lithiation of 4-functionalised 1-chloro-2-butenes
Huerta, Fernando F.,Gomez, Cecilia,Yus, Miguel
, p. 13243 - 13254 (1996)
The reaction of N,N-disubstituted (E)-4-amino-1-chloro-2-butenes 1 with an excess of lithium and a catalytic amount of DTBB in the presence of an electrophile [E + = Bu(t)CHO, PhCHO, Me2CO, (CH2)5CO, (c-C3H
