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73135-72-5

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73135-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73135-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,3 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73135-72:
(7*7)+(6*3)+(5*1)+(4*3)+(3*5)+(2*7)+(1*2)=115
115 % 10 = 5
So 73135-72-5 is a valid CAS Registry Number.

73135-72-5Downstream Products

73135-72-5Relevant articles and documents

Biosynthesis of the Cephalotaxus Alkaloids. Investigations of the Early and Late Stages of Cephalotaxine Biosynthesis

Parry, Ronald J.,Chang, Michael N. T.,Schwab, John M.,Foxman, B. M.

, p. 1099 - 1111 (2007/10/02)

The biosynthesis of the alkaloid cephalotaxine (1) has been investigated by means of precursor incorporation experiments with Cephalotaxus harringtonia.It has been established that cephalotaxine is biosynthesized from one molecule each of tyrosine and phenylalanine in a manner consistent with the hypothesis that 1 is a modified 1-phenethyltetrahydroisoquinoline alkaloid.Incorporation experiments with - and phenylalanine have shown that one of the meta carbon atoms of phenylalanine is lost during the conversion of this amino acid into cephalotaxine.The remaining meta carbon atom is located at C-2 of the alkaloid.Cephalotaxine (1), cephalotaxinone (2), demethylcephalotaxinone (3), and demethylcephalotaxine (4) labeled with carbon-14 at C-3 have been synthesized.Incorporation experiments with these labeled alkaloids have established that cephalotaxine and cephalotaxinone are irreversibly demethylated in vivo.

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