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121456-55-1

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121456-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121456-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,5 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121456-55:
(8*1)+(7*2)+(6*1)+(5*4)+(4*5)+(3*6)+(2*5)+(1*5)=101
101 % 10 = 1
So 121456-55-1 is a valid CAS Registry Number.

121456-55-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-[(2R,4S,5S)-4-azido-5-(phenylmethoxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione

1.2 Other means of identification

Product number -
Other names 3'-Azido-5'-O-benzyl-3'-deoxythymidine

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:121456-55-1 SDS

121456-55-1Upstream product

121456-55-1Relevant articles and documents

Mechanisms of 5′-O-Benzyl-2,3′-anhydrothymidine Reactions with Nucleophiles. I. Kinetics of Azide Formation by Dimethylammonium Azide in DMF

Malin,Shcherbinin,Poplavskii,Kononov,Ostrovskii

, p. 549 - 553 (2007/10/03)

Reaction of 5′-O-benzoyl-2,3′-anhydrothymidine with dimethylammonium azide in DMF within temperature range 95-125°C is described by the kinetic equation of overall second order, first order on each reagent. Taking into account the found values of activation parameters [Δ≠H 130 kJ mol-1, Δ≠S 36 J mol-1 K-1] we presume a the mechanism, according to which the limiting step in the azjdation is the heterolytic cleavage of a C3′ -O2 bond followed by fast attack of the aziding agent on the C3 atom of the intermediate, where the positive charge is localized.

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