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20178-12-5

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20178-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20178-12-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,7 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20178-12:
(7*2)+(6*0)+(5*1)+(4*7)+(3*8)+(2*1)+(1*2)=75
75 % 10 = 5
So 20178-12-5 is a valid CAS Registry Number.

20178-12-5Downstream Products

20178-12-5Relevant articles and documents

SYNTHESIS OF MONOTERPENE OXABICYCLODIOLS STARTING FROM α-PINENE

Popova, L. A.,Biba, V.I.,Prishchepenko, V.M.,Shavyrin, S.V.,Kozlov, N.G.

, p. 1346 - 1350 (2007/10/02)

Reaction of pinol with a mixture of formic acid and hydrogen peroxide selectively yields 1,8-epoxy-p-menthane-2-endo,6-endo-diol (epomediol), while (2R, 4S)-(-)-sobrerol under these conditions yields (1R, 2R, 4R, 6R)-(+)-6,8-epoxy-p-menthane-1,2-diol.Acetylation of epomediol gives the diacetate with preservation of the structure of the starting compound.Acetylation of 6,8-epoxy-p-menthane-1,2-diol proceeds with opening of the oxide ring and formation of a mixture of (1S, 2R, 5R)-(+)-p-menth-4(8)-ene-1,2,5-triacetates.

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