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5042-05-7

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5042-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5042-05-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5042-05:
(6*5)+(5*0)+(4*4)+(3*2)+(2*0)+(1*5)=57
57 % 10 = 7
So 5042-05-7 is a valid CAS Registry Number.

5042-05-7Downstream Products

5042-05-7Relevant articles and documents

Xanthones and Triterpenes of Mammea acuminata (Guttiferae)

Bandaranayake, Wickramasinghe M.,Karunanayake, Subadra,Sotheeswaran, Subramaniam,Sultanbawa, M. U. S.

, p. 463 - 467 (2007/10/02)

2-Methoxyxanthone, 2-hydroxyxanthone, 4-hydroxyxanthone, 1-hydroxy-7-methoxyxanthone, 1,5-dihydroxyxanthone, 1,7-dihydroxyxanthone, 5-hydroxy-1-methoxyxanthone, 3-hydroxy-2-methoxyxanthone and a new natural product 2,6-dihydroxyxanthone have been isolated from the timber extractives of Mammea acuminata.A biogenetic pathway for the formation of xanthones is proposed.The occurence of the triterpenes glutinol and glutinone is reported for the first time from Guttiferae.

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