128100-43-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128100-43-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,0 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128100-43:
(8*1)+(7*2)+(6*8)+(5*1)+(4*0)+(3*0)+(2*4)+(1*3)=86
86 % 10 = 6
So 128100-43-6 is a valid CAS Registry Number.
128100-43-6Relevant articles and documents
Decarboxylation of pyroglutamic acids with P2O5/CH3SO:3H: A general synthesis of 5-aryl-2-pyrrolidinones
Rigo,Fasseur,Cherepy,Couturier
, p. 7057 - 7060 (1989)
Treatment of pyroglutamic acids with acyl-activating reagents (P2O5/CH3SO3H, PPE....), possibly in the presence of triethylamine, yields acyl iminium salts, that can react in-situ with aromatic compounds to give
