83548-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83548-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,4 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83548-89:
(7*8)+(6*3)+(5*5)+(4*4)+(3*8)+(2*8)+(1*9)=164
164 % 10 = 4
So 83548-89-4 is a valid CAS Registry Number.
83548-89-4Relevant academic research and scientific papers
Synthesis of 4-Bromo-3-(2'-hydroxyphenyl)-1,5-diphenylpyrazolines and Pyrazoles
Joshi, M. G,Wadodkar, K. N.
, p. 689 - 690 (2007/10/02)
3-(2'-Hydroxyphenyl)-1,5-diphenylpyrazolines (Ia-e) react with NBS in CCl4 to give 4-bromo-3-(2'-hydroxyphenyl)-1,5-diphenyl-pyrazolines (IIa-e) whereas α-bromo-2-hydroxydibenzoylmethanes (IVa-e) react with phenylhydrazine in boiling ethanol to afford 4-b
