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87377-70-6

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87377-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87377-70-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,3,7 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87377-70:
(7*8)+(6*7)+(5*3)+(4*7)+(3*7)+(2*7)+(1*0)=176
176 % 10 = 6
So 87377-70-6 is a valid CAS Registry Number.

87377-70-6Relevant articles and documents

Synthetic and Biosynthetic Studies of Porphyrins.Part10.Syntheses of Porphyrins with Acetic,Propionic,and Butyric Acid Side-chains for Biosynthetic Syudies.

Jackson, Anthony H.,Pandey, Ravindra K.,Smith, Kevin M.

, p. 299 - 306 (2007/10/02)

In connection with studies of substrate specificity of uroporphyrinogen decarboxylase and coproporphyrinogen oxidase, enzymes in the heme and chlorophyll biosynthetic pathways,and heme oxygenase,an enzyme involved in the catabolism of hemes,we have synthesized a number of new porphyrins substituted with acetic,propionic,and butyric side-chains,using the a,c-biladiene route;one porphyrin was also prepared by the MacDonald pyrromethane approach.In one of the a,c-biladiene cyclizations,meso-chlorinated porphyrins were formed as minor by products,but this side-reaction was suppressed by carefully drying the copper(II) chloride used in this stage, or by use of copper(II) acetate as an alternative oxidant.

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