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71545-13-6

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71545-13-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71545-13-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,4 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71545-13:
(7*7)+(6*1)+(5*5)+(4*4)+(3*5)+(2*1)+(1*3)=116
116 % 10 = 6
So 71545-13-6 is a valid CAS Registry Number.

71545-13-6Upstream product

71545-13-6Downstream Products

71545-13-6Relevant articles and documents

Liquid chromatographic analysis of ethacrynic acid and degradation products in pharmaceutical systems

Yarwood,Moore,Collett

, p. 220 - 223 (1985)

An accurate, reproducible, and specific reversed-phase high-performance liquid chromatographic (HPLC) system was developed for the determination of ethacrynic acid and its degradation products. The method was used in stability studies of the drug in the solid state, in solution, and in dosage forms. Three degradation products were isolated by preparative chromatography and identified by several techniques, principally NMR and MS. TLC R(f) and HPLC response factors are quoted. A degradation scheme consistent with the observed stability profiles is proposed.

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