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28456-81-7

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28456-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28456-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,4,5 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28456-81:
(7*2)+(6*8)+(5*4)+(4*5)+(3*6)+(2*8)+(1*1)=137
137 % 10 = 7
So 28456-81-7 is a valid CAS Registry Number.

28456-81-7Relevant academic research and scientific papers

PROSTANOIDS. XV. SYNTHESIS OF THE ARYL-SUBSTITUTED ANALOGS OF LEUCOTRIENES A4 AND E4

Tolstikov, G. A.,Tolstikov, A. G.,Miftakhov, M. S.,Spirikhin, L. V.

, p. 1457 - 1463 (2007/10/02)

(+/-)-16-Phenoxy-17,18,19,20-tetranorleucotriene-A4 methyl ester, (+/-)-16-phenoxy-17,18,19,20-tetranorleucotriene-E4 dimethyl ester, (+/-)-16-oxa-14,15-dinor-13,16-inter-o-phenyleneleucotriene-A4 methyl ester,and (+/-)-16

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