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144837-72-9

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144837-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144837-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,8,3 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 144837-72:
(8*1)+(7*4)+(6*4)+(5*8)+(4*3)+(3*7)+(2*7)+(1*2)=149
149 % 10 = 9
So 144837-72-9 is a valid CAS Registry Number.

144837-72-9Relevant articles and documents

Practical Short Synthesis of 1β-Methylcarbapenem Utilizing a New Dehydration Type Ti-Dieckmann Condensation

Tanabe, Yoo,Manta, Naoki,Nagase, Ryohei,Misaki, Tomoniri,Nishii, Yoshinori,Sunagawa, Makoto,Sasaki, Akira

, p. 967 - 970 (2007/10/03)

An efficient, practical, and stereocontrolled synthesis of 1β-methylcarbapenems has been performed utilizing a new dehydration type of Ti-Dieckmann (intramolecular Ti-Claisen) condensation. This cyclization reaction has the advantage of direct incorporati

Processes for preparing carbapenem derivatives

-

, (2008/06/13)

The invention relates to carbapenem derivatives useful as antimicrobial agents, more particularly to intermediate compounds for the preparations thereof of the formula STR1

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