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124781-21-1

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124781-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124781-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,7,8 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 124781-21:
(8*1)+(7*2)+(6*4)+(5*7)+(4*8)+(3*1)+(2*2)+(1*1)=121
121 % 10 = 1
So 124781-21-1 is a valid CAS Registry Number.

124781-21-1Relevant articles and documents

Stereoselective total synthesis of 16-membered macrolide aglycons, leuconolides and maridonolides. Macrocyclic stereocontrol based on conformational analysis of the 16-membered macrolide ring

Nakajima,Matsushima,Yonemitsu,Goto,Osawa

, p. 2819 - 2829 (1991)

Sixteen-membered macrolide aglycons with difrerent oxidation levels, leuconolide A1 (3a), leuconolide A3 (3b), midecanolide A1 (3c), maridonolide 11 (4a), and maridonolide 1 (4b), were synthesized from two carbonolide type

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