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100572-87-0

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100572-87-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100572-87-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,7 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100572-87:
(8*1)+(7*0)+(6*0)+(5*5)+(4*7)+(3*2)+(2*8)+(1*7)=90
90 % 10 = 0
So 100572-87-0 is a valid CAS Registry Number.

100572-87-0Relevant articles and documents

Terpenes and Terpene Derivatives, XVIII. - Concerning the Preparation of rac-γ-Curcumene

Weyerstahl, Peter,Marschall-Weyerstahl, Helga,Scholz, Stefan

, p. 1021 - 1029 (2007/10/02)

Preparation of pure γ-curcumene (3) described by Birch in 1949 via dehydratization of the alcohol 5 with SOCl2/pyridine was not reproducible.Mixtures of α-, β-, and γ-curcumene (1-3) were obtained even with POCl3/pyridine or Burgess reagent.Analogously the secondary alcohol 20 yielded mixtures of 3 and the 1,3-dienes 21 and (presumably) 22. - Li/NH3 reduction of the tert. benzyl alcohol 8 afforded after work-up directly the dienone 15 which with MeLi gave the dehydro derivative 16 of zingiberenol (17).

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