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138124-71-7

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138124-71-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138124-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,2 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138124-71:
(8*1)+(7*3)+(6*8)+(5*1)+(4*2)+(3*4)+(2*7)+(1*1)=117
117 % 10 = 7
So 138124-71-7 is a valid CAS Registry Number.

138124-71-7Relevant articles and documents

Regiochemical Control of the Ring-Opening of 1,2-Epoxides by Means of Chelating Processes. 2. Synthesis and Reactions of the cis- and trans-Oxides of 4-cyclohexene, 3-Cyclohexenemethanol, and Methyl 3-Cyclohexenecarboxylate

Chini, Marco,Crotti, Paolo,Flippin, Lee A.,Macchia, Franco,Pineschi, Mauro

, p. 1405 - 1412 (2007/10/02)

The synthesis of the diastereoisomeric epoxides cis-1b-d and trans-2b-d and the products of their ring-opening by various nucleophiles are described.The results of the ring-openings of the trans-epoxides 2b-d can be rationalized by combining stereoelectro

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