3783-62-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3783-62-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,8 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3783-62:
(6*3)+(5*7)+(4*8)+(3*3)+(2*6)+(1*2)=108
108 % 10 = 8
So 3783-62-8 is a valid CAS Registry Number.
3783-62-8Relevant articles and documents
Preparation of 3-pyrrolidone and 4-perhydroazepinone
Roglans,Marquet,Moreno-Manas
, p. 1249 - 1258 (2007/10/02)
Efficient multigram preparations of 3-pyrrolidone by sequential Michael addition and Dieckmann condensation, and of 4-perhydroazepinone by ring expansion have been achieved.