54552-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54552-77-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,5,5 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54552-77:
(7*5)+(6*4)+(5*5)+(4*5)+(3*2)+(2*7)+(1*7)=131
131 % 10 = 1
So 54552-77-1 is a valid CAS Registry Number.
54552-77-1Relevant articles and documents
Promotion of Dehydrazination by Nitrobenzensulfonyl Group from Phosphorus-hydrazone Adducts
Yamashita, Mitsuji,Takeuchi, Jun,Nakatani, Kaname,Oshikawa, Tatsuo,Inokawa, Saburo
, p. 377 - 378 (1985)
Dehydrazination of adducts of phenylsulfonylhydrazones and phosphorus compounds was promoted by a nitro substituent on the ring to afford derivatives of a phosphine oxide and phosphonates.