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50667-81-7

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50667-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50667-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,6 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 50667-81:
(7*5)+(6*0)+(5*6)+(4*6)+(3*7)+(2*8)+(1*1)=127
127 % 10 = 7
So 50667-81-7 is a valid CAS Registry Number.

50667-81-7Relevant articles and documents

Syntheses d'analogues soufres d'isocannabinoides et de tetrahydrocannabinols

Montero, Jean-Louis,Bello-Roufai, Nassirou,Leydet, Alain,Dewynter, Georges,N'Guessan, Thomas Yao,Winternitz, Francois

, p. 302 - 308 (2007/10/02)

A systematic synthesis of thio compounds of isocannabinoids and tetrahydrocannabinols is described.The thiophenols were prepared by the Newman-Kwart reaction.The reaction of > has been used for the synthesis of citrylidene thiophenol.The structure of citrylidene monothioolivetol was established by spectroscopic and chemical methods.The synthesis of (-) 1'thio Δ1,6 THC is also described; this compound has potential biologic properties.

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