75221-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75221-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,2 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75221-71:
(7*7)+(6*5)+(5*2)+(4*2)+(3*1)+(2*7)+(1*1)=115
115 % 10 = 5
So 75221-71-5 is a valid CAS Registry Number.
75221-71-5Relevant academic research and scientific papers
Synthesis of Diorganylamino Substituted Carbodiphosphoranes
Appel, Rolf,Baumeister, Ulrich
, p. 513 - 516 (2007/10/02)
Aminolysis of the P-chlorofunctional carbodiphosphorane Ph3P=C=PPh2Cl (1) affords the diorganylamino substituted phosphonium salts CHPPh2(NR2)>+Cl- (3a-e, R = alkyl), which can be dehydrohalogenated in good yield by NaH to
