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(E)-3-Trifluoromethyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-pent-2-en-4-ynoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

259795-05-6

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259795-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 259795-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,7,9 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 259795-05:
(8*2)+(7*5)+(6*9)+(5*7)+(4*9)+(3*5)+(2*0)+(1*5)=196
196 % 10 = 6
So 259795-05-6 is a valid CAS Registry Number.

259795-05-6Relevant academic research and scientific papers

A stereoselective synthesis of ethyl 9-cis-7,8-didehydro-19-trifluoromethylretinoate

Qing, Feng-Ling,Ying, Jieweng,Zhang, Yanmei

, p. 31 - 33 (2000)

The design and synthesis of ethyl 9-cis-7,8-didehydro-19-trifluoromethylretinoate was described. The key step is the Sonogashira reaction of ethyl 3-iodo-4,4,4-trifluoro-2(Z)-butenoate 2 with terminal alkyne 3.

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