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67262-34-4

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67262-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67262-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,6 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 67262-34:
(7*6)+(6*7)+(5*2)+(4*6)+(3*2)+(2*3)+(1*4)=134
134 % 10 = 4
So 67262-34-4 is a valid CAS Registry Number.

67262-34-4Upstream product

67262-34-4Relevant articles and documents

Synthesis and Absolute Configuration of the Bacterial cis-1,2-, cis-8,9-, and cis-10,11-Dihydrodiol Metabolites of Benzanthracene Formed by a Strain of Beijerinckia

Jerina, D. M.,Bladeren, P. J. van,Yagi, H.,Gibson, D. T.,Mahadevan, V.,et al.

, p. 3621 - 3628 (1984)

Metabolism of the environmental contaminant benzanthracene has been examined with the bacterium Beijerinckia B8/36.This organism is a mutant strain of the wild type, which lacks the ability to oxidize further initially formed cis-dihydrodiol metabolites of aromatic hydrocarbons.The main isolated metabolites of benzanthracene consist of the cis-1,2-, cis-8,9-, and cis-10,11-dihydrodiols in a ratio of 73:15:12, respectively.Synthesis of the dihydrodiols in optically pure form from precursors whose configurations were previously known or have been assigned in thepresent study has established that the metabolites are of very high enantiomeric purity and have 1R,2S, 8R,9S, and 10S,11R absolute configurations.In the course of these assignments, the (+)-isomer of 1,2-epoxy-1,2,3,4-tetrahydrobenzanthracene has been established to have 1R,2S absolute configuration, and a prior assignment of (-)-trans-(1R,2R)-1,2-dihydroxy-1,2-dihydrobenzanthracene has been confirmed.The chemical interrelationships of absolute configuration have been done in such a manner that the cis-1,2-, cis-8,9-, and cis-10,11-dihydrodiols formed by the bacterium are tied directly to structures which have been used to assign the corresponding trans-1,2-, trans-8,9-, and trans-10,11-dihydrodiols formed from benzanthracene in mammalian liver.

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