881891-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 881891-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,1,8,9 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 881891-99:
(8*8)+(7*8)+(6*1)+(5*8)+(4*9)+(3*1)+(2*9)+(1*9)=232
232 % 10 = 2
So 881891-99-2 is a valid CAS Registry Number.
881891-99-2Relevant articles and documents
An efficient synthesis of highly substituted pyrroles from β-oxodithiocarboxylates
Mathew, Paulson,Asokan
, p. 1708 - 1716 (2006)
α-Oxoketene-N,S-acetals, prepared by the reaction of alkyl glycinate hydrochlorides with β-oxodithiocarboxylates followed by alkylation, underwent cyclization in presence of chloromethyleneiminium salt derived from POCl3/DMF to afford alkyl-3-a
