309974-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 309974-83-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,7 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 309974-83:
(8*3)+(7*0)+(6*9)+(5*9)+(4*7)+(3*4)+(2*8)+(1*3)=182
182 % 10 = 2
So 309974-83-2 is a valid CAS Registry Number.
309974-83-2Relevant articles and documents
Combined directed ortho metalation - Grubbs metathesis tactics. Synthesis of benzazepine, benzazocine, and benzannulated 7-, 8-, 9-, and 15-membered ring sulfonamide heterocycles
Lane,Snieckus
, p. 1294 - 1296 (2007/10/03)
The rapid construction of diverse benzannulated heterocyclic systems 7, 8, 12a-c, 15a-b, and 21 using Directed ortho Metalation - Ring Closure Metathesis sequences is reported.
