343967-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343967-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,9,6 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 343967-99:
(8*3)+(7*4)+(6*3)+(5*9)+(4*6)+(3*7)+(2*9)+(1*9)=187
187 % 10 = 7
So 343967-99-7 is a valid CAS Registry Number.
343967-99-7Relevant articles and documents
Annelation of β-keto-thiolesters and synthetic application
Liu, Hsing-Jang,Ho, Li-Kang,Lai, Hoi Kiong
, p. 1685 - 1688 (2007/10/02)
The use of β-keto thiolesters in the construction of fused (e.g. 8) and bridged (e.g. 12) ring systems possessing a functionalized substituent at the angular position is described.Some synthetic applications of the annelation procedure are demonstrated in