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211919-87-8

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211919-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211919-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,9,1 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 211919-87:
(8*2)+(7*1)+(6*1)+(5*9)+(4*1)+(3*9)+(2*8)+(1*7)=128
128 % 10 = 8
So 211919-87-8 is a valid CAS Registry Number.

211919-87-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name 3'-O-(T-BUTYLDIMETHYLSILYL)-5'-OXO-8,5'-CYCLO-2'-DEOXYADENOSINE

1.2 Other means of identification

Product number -
Other names -

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:211919-87-8 SDS

211919-87-8Relevant articles and documents

C5′-adenosinyl radical cyclization. A stereochemical investigation

Navacchia, Maria Luisa,Chatsilialoglu, Chryssostomos,Montevecchi, Pier Carlo

, p. 4445 - 4452 (2007/10/03)

A variety of substituted 2′-deoxyadenosin-5′-yl radicals 3 were generated under different reaction conditions. Radicals 3 underwent intramolecular cyclization onto the C8-N7 double bond of the adenine moiety leading to aminyl radicals (5′S,8R)-4 and (5′R,8R)-4 and, eventually, to the corresponding cyclonucleosides 5 and 6. The effect of the solvent, the nature of the substituents, and the generation method of radicals 3 on the stereoselectivity of the C5′-radical cyclization have been considered. The observed increase of the (5′S)/(5′R) ratio by increasing the bulkiness of the R1 group is explained in terms of steric repulsion between R1 and the purine moiety which favors the C5′-endo conformation, whereas the effect of the water solvent in promoting the (5′R)-stereoselective cyclization is ascribed to intermolecular hydrogen bonding stabilizing the C5′-exo confomation.

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