254884-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254884-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,8,8 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 254884-40:
(8*2)+(7*5)+(6*4)+(5*8)+(4*8)+(3*4)+(2*4)+(1*0)=167
167 % 10 = 7
So 254884-40-7 is a valid CAS Registry Number.
254884-40-7Relevant academic research and scientific papers
Synthesis of phenazone derivatives
Moustafa, Ahmed H.,Saad, Hosam A.
, p. 328 - 331 (2007/10/03)
Some new phenazone (antipyrin) derivatives 2-11 have been synthesised by acylation, alkylation, condensation and ring closure reactions of 4-aminophenazone 1. The structures of the products have been secured by elemental analyses and spectral data (IR, s
