857569-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857569-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,6 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 857569-55:
(8*8)+(7*5)+(6*7)+(5*5)+(4*6)+(3*9)+(2*5)+(1*5)=232
232 % 10 = 2
So 857569-55-2 is a valid CAS Registry Number.
857569-55-2Relevant articles and documents
Microwave-induced Mannich reaction - Synthesis of some Mannich derivatives of p-aminophenol
Mahesh,Perumal, R. Venkatesha
, p. 1012 - 1014 (2007/10/03)
Mono and bis substituted dialkylamino alkyl-p-aminophenol 3 are prepared by treating paracetamol 1 with formaldehyde and appropriate secondary amines followed by deacetylation using 6 M HCI in unmodified domestic microwave oven in unsealed borosil vessels