91805-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91805-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,0 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91805-18:
(7*9)+(6*1)+(5*8)+(4*0)+(3*5)+(2*1)+(1*8)=134
134 % 10 = 4
So 91805-18-4 is a valid CAS Registry Number.
91805-18-4Relevant academic research and scientific papers
A CONVENIENT SYNTHESIS OF 3-ARYL COUMARINS
Ming, Yang,Boykin, David W.
, p. 3229 - 3231 (2007/10/02)
A new, convenient, one-step synthesis od 3-aryl coumarins from 2-fluorobenzaldehyde and aryl acetic acids is reported.
