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211945-49-2

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211945-49-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211945-49-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,9,4 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 211945-49:
(8*2)+(7*1)+(6*1)+(5*9)+(4*4)+(3*5)+(2*4)+(1*9)=122
122 % 10 = 2
So 211945-49-2 is a valid CAS Registry Number.

211945-49-2Relevant articles and documents

Stereoselective synthesis of novel anti-MRSA tricyclic carbapenems (trinems)

Kanno, Osamu,Kawamoto, Isao

, p. 5639 - 5648 (2007/10/03)

(4S)-Hydroxymethyltrinem 3 was prepared via stereoselective aldol-type reaction with optically pure (R)-2-t-butyldimethylsilyloxymethylcyclohexanone ((R)-16). (4S)-Hydroxymethyltrinem 3 was converted into various kinds of trinem derivatives with anti-MRSA activity by using the Mitsunobu reaction. (C) 2000 Elsevier Science Ltd.

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