4971-95-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4971-95-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,7 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4971-95:
(6*4)+(5*9)+(4*7)+(3*1)+(2*9)+(1*5)=123
123 % 10 = 3
So 4971-95-3 is a valid CAS Registry Number.
4971-95-3Relevant academic research and scientific papers
Organic Reactive Intermediates: Part XI - Preparation and Reactions of Xanthenyl Ylids
Handoo, Kishan L.,Kaul, Anju
, p. 1 - 2 (2007/10/02)
Two new xanthenyl ylids, viz. triphenylphosphoniumxanthen-9-ylid and triphenylphosphoniumthioxanthen-9-ylid have been prepared.The former undergoes normal Wittig reaction with a number of carbonyl compounds yielding olefins.
