344271-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344271-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,2,7 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 344271-65:
(8*3)+(7*4)+(6*4)+(5*2)+(4*7)+(3*1)+(2*6)+(1*5)=134
134 % 10 = 4
So 344271-65-4 is a valid CAS Registry Number.
344271-65-4Relevant 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
