863908-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 863908-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,3,9,0 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 863908-20:
(8*8)+(7*6)+(6*3)+(5*9)+(4*0)+(3*8)+(2*2)+(1*0)=197
197 % 10 = 7
So 863908-20-7 is a valid CAS Registry Number.
863908-20-7Relevant articles and documents
Asymmetric synthesis of 1-substituted tetrahydro-3-benzoazepines
Wirt, Ursula,Froehlich, Roland,Wuensch, Bernhard
, p. 2199 - 2202 (2005)
In order to develop a new asymmetric synthesis of enantiomerically pure 1-substituted tetrahydro-3-benzoazepines 3, the synthesis of diastereomerically pure oxazolo[3]benzoazepinone 4 has been performed. The stereochemical information of the key intermedi