81461-93-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81461-93-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,6 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81461-93:
(7*8)+(6*1)+(5*4)+(4*6)+(3*1)+(2*9)+(1*3)=130
130 % 10 = 0
So 81461-93-0 is a valid CAS Registry Number.
81461-93-0Relevant academic research and scientific papers
SELECTIVE CLEAVAGE OF ESTER AND ETHER FUNCTIONS WITH BBr3 OR Me3SiX IN SUBSTITUTED N-ARYLAZETIDINONES
Wakselman, Michel,Zrihen, Maryse
, p. 333 - 336 (2007/10/02)
At -30 deg C BBr3 is a milder reagent than Me3SiI and Me3SiCl + NaI for the cleavage of methyl or tert-butyl esters and benzyl ether group of the title β-lactams without destroying the azetidinone ring.
