278188-81-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 278188-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,8,1,8 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 278188-81:
(8*2)+(7*7)+(6*8)+(5*1)+(4*8)+(3*8)+(2*8)+(1*1)=191
191 % 10 = 1
So 278188-81-1 is a valid CAS Registry Number.
278188-81-1Relevant articles and documents
Studies on Pyrrolidinones. Synthesis of 1-[(N-Acetylaryl-amino)methyl]pyroglutamic Acid Derivatives
El Ghammarti, Samira,Rigo, Benoit,Mejdi, Hechmi,Hénichart, Jean-Pierre,Couturier, Daniel
, p. 555 - 565 (2007/10/03)
Pyroglutamic acid was transformed into 1-[(N-Acetylarylamino)methyl]pyroglutamic acid derivatives by using trimethylsilyl variations of the Mannich reaction.
