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4250-02-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4250-02-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,5 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4250-02:
56 % 10 = 6
So 4250-02-6 is a valid CAS Registry Number.



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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017


1.1 GHS Product identifier

Product name octahydro-quinolizin-9a-ol

1.2 Other means of identification

Product number -
Other names 10-Hydroxy-octahydrochinolidin

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:4250-02-6 SDS

4250-02-6Relevant articles and documents

Formation and fragmentation of 4-diazo-1,2-diphenyl-3-oxo-butyl acetate

Oezbilen, Deniz,Beile, Bernhard,Meier, Herbert

, p. 99 - 102 (2013)

Threo-4-Diazo-1,2-diphenyl-3-oxo-butyl acetate (15) could be prepared via the classical route 6 → 8 → 10 → 12 → 13 → 15. However, its alkaline hydrolysis to the bifunctional hydroxy compound 17 led to a spontaneous dehydration to the diazoketone (E)-18 and to a fragmentation to acetic acid, benzaldehyde (8) and diazoketone 19.

A Diverse Library of Chiral Cyclopropane Scaffolds via Chemoenzymatic Assembly and Diversification of Cyclopropyl Ketones

Nam, Donggeon,Steck, Viktoria,Potenzino, Robert J.,Fasan, Rudi

, p. 2221 - 2231 (2021/02/16)

Chiral cyclopropane rings are key pharmacophores in pharmaceuticals and bioactive natural products, making libraries of these building blocks a valuable resource for drug discovery and development campaigns. Here, we report the development of a chemoenzymatic strategy for the stereoselective assembly and structural diversification of cyclopropyl ketones, a highly versatile yet underexploited class of functionalized cyclopropanes. An engineered variant of sperm whale myoglobin is shown to enable the highly diastereo- and enantioselective construction of these molecules via olefin cyclopropanation in the presence of a diazoketone carbene donor reagent. This biocatalyst offers a remarkably broad substrate scope, catalyzing this reaction with high stereoselectivity across a variety of vinylarene substrates as well as a range of different α-aryl and α-alkyl diazoketone derivatives. Chemical transformation of these enzymatic products enables further diversification of these molecules to yield a collection of structurally diverse cyclopropane-containing scaffolds in enantiopure form, including core motifs found in drugs and natural products as well as novel structures. This work illustrates the power of combining abiological biocatalysis with chemoenzymatic synthesis for generating collections of optically active scaffolds of high value for medicinal chemistry and drug discovery.

An efficient PEG-400 mediated catalyst free green synthesis of 2-amino-thiazoles from α-diazoketones and thiourea

Babu, B Hari,Vijay,Murali Krishna, K Bala,Sharmila,Ramana, M Baby

, p. 1475 - 1478 (2016/09/19)

A simple and efficient method has been developed for the synthesis of 2-aminothiazoles from α-diazoketones using PEG-400 solvent system. This novel synthetic approach involves the reaction between thiourea and α-diazoketones in PEG-400 at 100 °C to yield the corresponding 2-aminothiazoles in good yields. The method is simple, rapid and generates thiazole derivatives in excellent yields without the use of any catalysts. This green protocol can be utilized for fast synthesis of various 2-aminothiazoles in good yields. [Figure not available: see fulltext.]

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