87143-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87143-28-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,4 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87143-28:
(7*8)+(6*7)+(5*1)+(4*4)+(3*3)+(2*2)+(1*8)=140
140 % 10 = 0
So 87143-28-0 is a valid CAS Registry Number.
87143-28-0Relevant articles and documents
Acyl and Sulfonyl Isocyanates ib β-Lactam Synthesis
Barrett, Anthony G. M.,Betts, Michael J.,Fenwick, Ashley
, p. 169 - 175 (2007/10/02)
The preparation of β-lactams from the reactions of several acyl and sulfonyl activated isocyanates with alkenes was studied.Three compounds, (2,2,2-trichloroethoxy)sulfonyl, 2,2,2-trichloroethane sulfonyl, and trifluoroacetyl isocyanates, were shown to be
