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119841-80-4

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119841-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119841-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,8,4 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 119841-80:
(8*1)+(7*1)+(6*9)+(5*8)+(4*4)+(3*1)+(2*8)+(1*0)=144
144 % 10 = 4
So 119841-80-4 is a valid CAS Registry Number.

119841-80-4Downstream Products

119841-80-4Relevant articles and documents

Lignans and Related Phenols. Part 18. The Synthesis of Quinones from Podophyllotoxin and its Analogues

Ayres, David C.,Ritchie, Timothy J.

, p. 2573 - 2578 (2007/10/02)

The preparation of quinones from podophyllotoxin and peltatins of the aryltetrahydronaphtalene class by oxidative demethylation is described.The derivation of 2'-substituted ortho-quinones from these products by the reductive addition of azide, bromide, a

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