40203-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40203-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,0 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40203-82:
(7*4)+(6*0)+(5*2)+(4*0)+(3*3)+(2*8)+(1*2)=65
65 % 10 = 5
So 40203-82-5 is a valid CAS Registry Number.
40203-82-5Relevant academic research and scientific papers
REVERSE MICROEMULSIONS MEDIATED SYTHESIS OF VINYLPHOSPHONIUM SALTS.
Larpent, C.,Meignan, G.,Patin, H.
, p. 2615 - 2618 (2007/10/02)
PPh3 reacts with activated alkynes in reverse (water-hydrocarbon) microemulsions giving specifically rise to a mixture of Z and E triphenylvinylphosphonium salts which are readily isolated in good yields.
