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51557-84-7

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51557-84-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51557-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,5 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 51557-84:
(7*5)+(6*1)+(5*5)+(4*5)+(3*7)+(2*8)+(1*4)=127
127 % 10 = 7
So 51557-84-7 is a valid CAS Registry Number.

51557-84-7Relevant articles and documents

Synthesis of (+/-)-Methyl Epijasmonate and (+/-)-Methyl Cucurbate

Kitahara, Takeshi,Miura, Katsutoshi,Warita, Yasuhiro,Takagi, Yoshikazu,Mori, Kenji

, p. 1129 - 1134 (2007/10/02)

A novel synthesis of (+/-)-methyl epijasomonate (2) and the first synthesis of (+/-)-methyl cucurbate (4) were achieved startig from 2-allocyclohexane-1,3-dione (8).The synthetic epimer 2 had a stronger jasmin flavor than the trans-isomer 1 with 95percent purity.

2-Oxo-cyclopenta[b]furan-5α-carboxylic acid esters

-

, (2008/06/13)

Process for synthesizing the lactone, (dl) 3,3a beta-4,5,6,6a beta-hexahydro-4beta(3-hydroxyl-1-trans-octenyl)-5alpha-hydroxy-2-oxo-2H-cyclopenta[b]furan, a known intermediate for producing prostaglandin E2 and F2α and a p

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