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129764-19-8

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129764-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129764-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,6 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129764-19:
(8*1)+(7*2)+(6*9)+(5*7)+(4*6)+(3*4)+(2*1)+(1*9)=158
158 % 10 = 8
So 129764-19-8 is a valid CAS Registry Number.

129764-19-8Downstream Products

129764-19-8Relevant articles and documents

Molecular clefts 2. An analogue of Kagan's ether as a molecular cleft: Synthesis and clathrate formation with ethyl acetate

Harmata, Michael,Barnes, Charles L.

, p. 1825 - 1828 (2007/10/02)

A convenient synthesis of 5α,8α, 14α, 17α-5,6,8,9,14,15,17,18 - octahydro-5,17:8,14-diepoxydibenzo[e,e′]benzo[1,2-a:4,5-a′ dicyclooctene (2) is described. This molecular cleft represents the parent of a new class of chiral molecular tweezers. It forms a clathrate with ethyl acetate which is stable even after 12 hours at 0.1 Tort. The structure of 2 was established by spectral and X-ray data. A convenient synthesis of 5a,8a,14a,17a-5,6,8,9,14,15,17,18-octahydro-5,17:8,14-diepoxydibenzo[e, e′]benzo[1,2-a:4,5-a′]icyclooctene (2) is described. It forms a clathrate with ethyl acetate which is stable even after 12 hours at .1 Torr. (Chemical Equation Presented).

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