141978-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141978-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,7 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 141978-89:
(8*1)+(7*4)+(6*1)+(5*9)+(4*7)+(3*8)+(2*8)+(1*9)=164
164 % 10 = 4
So 141978-89-4 is a valid CAS Registry Number.
141978-89-4Relevant academic research and scientific papers
ASYMMETRIC SYNTHESIS OF NEW NON-NATURAL 1β-METHYLCARBAPENEMS BEARING METHYLTHIO GROUP AT THE C6-POSITION
Nagao, Yoshimitsu,Abe, Takao,Shimizu, Hisashi,Kumagai, Toshio,Inoue, Yoshinori
, p. 523 - 528 (2007/10/02)
The asymmetric total synthesis of new non-natural 1β-methylcarbapenems (1 and 2) has been accomplished starting from optically active C4-substituted azetidin-2-one (4).
