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15139-36-3

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15139-36-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15139-36-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,3 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 15139-36:
(7*1)+(6*5)+(5*1)+(4*3)+(3*9)+(2*3)+(1*6)=93
93 % 10 = 3
So 15139-36-3 is a valid CAS Registry Number.

15139-36-3Relevant articles and documents

Synthesis of benzyl 6-oxopenicillanate and derivatives. I.

Lo,Sheehan

, p. 8253 - 8253 (1972)

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Carbon and oxygen analogs of penicillin

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, (2008/06/13)

In accordance with this invention, it has been found that carbon and oxygen analogs of 6β-aminopenicillanic acid and biologically active derivatives thereof can be formed from esters of 6-oxopenicillanic acid. For example, 6β-phenoxyacetoxypenicillanic ac

Isomerisation of benzyl 6-phenoxyacetoxypenicillanates and their S-oxides.

Roets,Vlietinck,Vanderhaeghe

, p. 704 - 710 (2007/10/08)

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