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164738-86-7

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164738-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164738-86-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,7,3 and 8 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 164738-86:
(8*1)+(7*6)+(6*4)+(5*7)+(4*3)+(3*8)+(2*8)+(1*6)=167
167 % 10 = 7
So 164738-86-7 is a valid CAS Registry Number.

164738-86-7Relevant articles and documents

Syntheses of Antitumor Morphinane Alkaloids, Sinococuline and 6-epi-, 7-epi-, and 6-epi-7-epi-Sinococuline, from Sinomenine

Hitotsuyanagi, Yukio,Nishimura, Kunihiko,Ikuta, Hiroshi,Takeya, Koichi,Itokawa, Hideji

, p. 4549 - 4558 (1995)

An antitumor alkaloid, sinococuline 81), and its C-6 and/or C-7 epimeric analogs 3-5 have been synthesized from sinomenine (2).The carbonyl transposition from 9 to 8 using selenoxide chemistry proceeded in an efficient manner.Successive C-6 hydroxylation

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