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124099-03-2

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124099-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124099-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,9 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 124099-03:
(8*1)+(7*2)+(6*4)+(5*0)+(4*9)+(3*9)+(2*0)+(1*3)=112
112 % 10 = 2
So 124099-03-2 is a valid CAS Registry Number.

124099-03-2Relevant articles and documents

A New Route to Benzonaphthacene-8,13-diones: Synthesis and Revision of the Structure Proposed for G2N

Hauser, Frank M.,Caringal, Yolanda

, p. 555 - 559 (1990)

A regiospecific total synthesis of 1b, the tris(methyl ether) derivative of the structure proposed for G2N (1a), was performed through condensation of the anion of the phthalidesulfone 3 with the hydrophenanthrone 4.This preparation shows that although the ring system for these natural products is correct, the proposed substitution pattern is incorrect.The revised structures 19a and 19b are recommended for G2N and G2N tris(methyl ether), respectively.

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