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221678-47-3

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221678-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221678-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,7 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 221678-47:
(8*2)+(7*2)+(6*1)+(5*6)+(4*7)+(3*8)+(2*4)+(1*7)=133
133 % 10 = 3
So 221678-47-3 is a valid CAS Registry Number.

221678-47-3Downstream Products

221678-47-3Relevant articles and documents

Synthesis and biological evaluation of novel tricyclic carbapenems (Trinems)

Kanno, Osamu,Shimoji, Yasuo,Ohya, Satoshi,Kawamoto, Isao

, p. 404 - 414 (2007/10/03)

Synthesis of new tricyclic carbapenems (trinems) with a pyrrolidinyl moiety at the C-4 position of the tricyclic ring and their antimicrobial activities were studied. These trinems showed potent activities against Gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA). Among them, (4R)-[(S)-pyrrolidin-3-ylthiomethyl]trinem (14a) exhibited good activity against MRSA in vitro and in vivo.

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