Cas 138567-57-4,4,7-Octadien-1-ol, 7-methyl-, (E)-

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Check Digit Verification of cas no

The CAS Registry Mumber 138567-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,6 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138567-57:
(8*1)+(7*3)+(6*8)+(5*5)+(4*6)+(3*7)+(2*5)+(1*7)=164
164 % 10 = 4
So 138567-57-4 is a valid CAS Registry Number.

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138567-57-4Relevant academic research and scientific papers

The Copper(I)-catalysed Coupling of Grignard Reagents with 5-Lithio-2,3-dihydrofuran and 6-Lithio-3,4-dihydro-2H-pyran

Barber, Christopher,Bury, Paul,Kocienski, Philip,O'Shea, Michael

, p. 1595 - 1597 (1991)

The organocuprates derived from reaction of Grignard reagents with CuBr*Me2S react with 5-lithio-2,3-dihydrofuran and 6-lithio-3,4-dihydro-2H-pyran via a 1,2-metallate rearrangement to generate an alkenylmagnesium cuprate.

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