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151693-61-7

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151693-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151693-61-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,6,9 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 151693-61:
(8*1)+(7*5)+(6*1)+(5*6)+(4*9)+(3*3)+(2*6)+(1*1)=137
137 % 10 = 7
So 151693-61-7 is a valid CAS Registry Number.

151693-61-7Relevant articles and documents

Stereoselective synthesis of (-)-ara-cyclohexenyl-adenine

Horváth, András,Ruttens, Bart,Herdewijn, Piet

, p. 3621 - 3623 (2008/02/02)

A stereoselective synthesis leading to (-)-ara-cyclohexenyl-adenine is described. The synthesis starts from methyl-α-d-glucopyranose and involves an isomerization step, selective protection/deprotection chemistry, a Ferrier rearrangement and a Mitsunobu r

(-)-Quinic Acid in Organic Synthesis. Part 4. Syntheses of Cyclophellitol and its (1R,6S)-, (2S)-, (1R,2S,6S)-Diastereoisomers

Shing, Tony K. M.,Tai, Vincent W.-F.

, p. 2017 - 2026 (2007/10/02)

Cyclophellitol 1 and its (1R,6S)-, (2S)-, (1R,2S,6S)-diastereoisomers 2, 3 and 4 are constructed from quinic acid involving the following key steps: regioselective cyclic sulfate ring opening, regiospecific oxidative elimination and an epoxidation.Diastereoisomers 1, 2, 3 and 4 are characterized as their corresponding tetraacetates 5, 6, 7 and 8.

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