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287178-29-4

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287178-29-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 287178-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,1,7 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 287178-29:
(8*2)+(7*8)+(6*7)+(5*1)+(4*7)+(3*8)+(2*2)+(1*9)=184
184 % 10 = 4
So 287178-29-4 is a valid CAS Registry Number.

287178-29-4Relevant articles and documents

Enantioselective synthesis of ceralure B1, ethyl cis-5-iodo-trans-2- methylcyclohexane-1-carboxylate

Raw, Andre S.,Jang, Eric B.

, p. 3285 - 3290 (2000)

Ethyl (1R, 2R, 5R)-5-iodo-2-methylcyclohexane-1-carboxylate is a potent attractant for the Mediterranean fruit fly. This compound was stereoselectively synthesized on a multigram scale in nine steps in 15% yield. Key steps of the synthesis involved an asymmetric Diels-Alder reaction, iodolactonization, stereoselective reduction of the carbonyl, and inversion of configuration with iodide. (C) 2000 Elsevier Science Ltd.

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