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66209-45-8

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66209-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66209-45-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,2,0 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 66209-45:
(7*6)+(6*6)+(5*2)+(4*0)+(3*9)+(2*4)+(1*5)=128
128 % 10 = 8
So 66209-45-8 is a valid CAS Registry Number.

66209-45-8Downstream Products

66209-45-8Relevant articles and documents

Preparation method of butorphanol tartrate and intermediate thereof

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Paragraph 0058-0061, (2021/01/15)

The invention provides a preparation method of butorphanol tartrate and an intermediate of butorphanol tartrate. The preparation method of the butorphanol tartrate and the intermediate of the butorphanol tartrate is mild in reaction condition, safe to operate and more suitable for large-scale production.

A stereoselective total synthesis of 14-hydroxymorphinans, Grewe approach

Monkovic,Bachand,Wong

, p. 4609 - 4610 (2007/10/10)

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Process for the preparation of 14-hydroxymorphinan derivatives

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, (2008/06/13)

N-substituted-14-hydroxy-3-substituted-morphinan derivatives have been found to possess potent narcotic agonist or antagonist activity. In particular, the compound N-Cyclobutylmethyl-3,14-dihydroxymorphinan has been found to possess potent agonist/antagonist activity as a non-narcotic analgesic. A new and efficient total synthesis of these compounds is described herein from the starting material 2-(p-methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline.

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