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503446-29-5

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503446-29-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503446-29-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,4,4 and 6 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 503446-29:
(8*5)+(7*0)+(6*3)+(5*4)+(4*4)+(3*6)+(2*2)+(1*9)=125
125 % 10 = 5
So 503446-29-5 is a valid CAS Registry Number.

503446-29-5Downstream Products

503446-29-5Relevant articles and documents

Efficient synthesis of [2H2]-tetrahydrodicranenone B and a 3-oxa-analogue resistant against β-oxidation

Lauchli, Ryan,Boland, Wilhelm

, p. 149 - 153 (2007/10/03)

A short efficient synthesis of two analogues of tetrahydrodicranenone B as well as a formal synthesis of tetrahydrodicranenone B (1) itself has been devised. The approach is based on an addition/elimination sequence of in situ prepared organocuprates to the iodocyclopentenone (9). The procedure is compatible with functionalised substituents.

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