Welcome to LookChem.com Sign In|Join Free

CAS

  • or

138380-43-5

Post Buying Request

138380-43-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

138380-43-5 Usage

Synthesis Reference(s)

Tetrahedron Letters, 32, p. 6215, 1991 DOI: 10.1016/0040-4039(91)80792-5

Check Digit Verification of cas no

The CAS Registry Mumber 138380-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,8 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138380-43:
(8*1)+(7*3)+(6*8)+(5*3)+(4*8)+(3*0)+(2*4)+(1*3)=135
135 % 10 = 5
So 138380-43-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H4O2S.H2O/c7-4-5(8)6-2-1-3-9-6;/h1-4H;1H2

138380-43-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-THIOPHENEGLYOXAL HYDRATE

1.2 Other means of identification

Product number -
Other names 2,2-Dihydroxy-1-(2-Thienyl)-Ethanone

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:138380-43-5 SDS

138380-43-5Relevant articles and documents

Synthesis and X-ray Characterization of Alkali Metal 2-Acyl-1,1,3,3-tetracyanopropenides

Karpov, Sergey V.,Grigor'Ev, Arthur A.,Kayukov, Yakov S.,Karpova, Irina V.,Nasakin, Oleg E.,Tafeenko, Victor A.

, p. 6402 - 6408 (2016/08/16)

A novel route for synthesis of 2-acyl-1,1,3,3-tetracyanopropenides (ATCN) salts in high yields and excellent purities starting from readily available methyl ketones, malononitrile, bromine, and alkali metal acetates is reported. The starting aryl(heteroaryl) methyl ketones were oxidized to the corresponding α-ketoaldehydes by new a DMSO-NaBr-H2SO4 oxidation system in yields up to 90% within a short reaction time of 8-10 min. The subsequent stages of ATCN preparation are realized in aqueous media without use of any toxic solvents, in accordance with principle 5 of "green chemistry". Lithium, sodium, potassium, rubidium, and cesium 2-benzoyl-1,1,3,3-tetracyanopropenides were characterized by X-ray diffraction analysis. These salts show a good potential for synthesis of five- and six-membered heterocycles and may serve as potentially useful ligands in coordination and supramolecular chemistry.

A highly efficient and enantioselective intramolecular cannizzaro reaction under TOX/Cu(II) catalysis

Wang, Pan,Tao, Wen-Jie,Sun, Xiu-Li,Liao, Saihu,Tang, Yong

supporting information, p. 16849 - 16852 (2013/12/04)

An asymmetric intramolecular Cannizzaro reaction of aryl and alkyl glyoxals with alcohols has been realized with an unprecedented high level of enantioselectivity, on the basis of a newly developed congested TOX ligand and a gradual liberation protocol of active glyoxals from glyoxal monohydrates. Preliminary results suggested a mechanism of enantioselective addition of alcohols to glyoxals contributing most to the stereoselectivity, other than by the dynamic kinetic resolution of hemiacetal intermediates.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 138380-43-5