1256921-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256921-43-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,9,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1256921-43:
(9*1)+(8*2)+(7*5)+(6*6)+(5*9)+(4*2)+(3*1)+(2*4)+(1*3)=163
163 % 10 = 3
So 1256921-43-3 is a valid CAS Registry Number.
1256921-43-3Relevant articles and documents
Triplet halocarbene chemistry: P-nitrophenylchlorocarbene and p-nitrophenylbromocarbene
Moss, Robert A.,Lu, Zhifeng,Sauers, Ronald R.
body text, p. 5940 - 5942 (2010/11/21)
Reactions of p-nitrophenylchlorocarbene with cumene and of p-nitrophenylbromocarbene with toluene afford C-H abstraction-recombination products that suggest the involvement of triplet arylhalocarbenes.
