691898-09-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691898-09-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,9 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 691898-09:
(8*6)+(7*9)+(6*1)+(5*8)+(4*9)+(3*8)+(2*0)+(1*9)=226
226 % 10 = 6
So 691898-09-6 is a valid CAS Registry Number.
691898-09-6Relevant articles and documents
Synthesis and structure/NMDA receptor affinity relationships of 1-substituted tetrahydro-3-benzazepines
Krull, Olaf,Wuensch, Bernhard
, p. 1439 - 1451 (2004)
A novel synthesis of 1-substituted tetrahydro-1H-3-benzazepines 4 is described. Starting with (2-bromophenyl)acetaldehyde acetal 5, the nitrostyrene 9 was prepared in three steps allowing the addition of various nucleophiles to yield the nitroacetals 10.
