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934986-76-2

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934986-76-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 934986-76-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,9,8 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 934986-76:
(8*9)+(7*3)+(6*4)+(5*9)+(4*8)+(3*6)+(2*7)+(1*6)=232
232 % 10 = 2
So 934986-76-2 is a valid CAS Registry Number.

934986-76-2Downstream Products

934986-76-2Relevant articles and documents

Synthesis of enantiomerically pure cyclopentene building blocks

Tietze, Lutz F.,Stadler, Christian,B?hnke, Niels,Brasche, Gordon,Grube, Alexander

, p. 485 - 487 (2007)

An efficient synthesis of the enantiomerically pure cis-annulated cyclopentenes 2 and ent-2 was established by the use of an enzymatic transesterification and hydrolysis, respectively, followed by an S N2-type substitution with a benzyloxymethyl cuprate and a sigmatropic rearrangement. The advantage of this approach is the short sequence combined with an excellent overall yield and an enantiomeric excess of 99%. Georg Thieme Verlag Stuttgart.

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