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821-55-6

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821-55-6 Usage

General Description

2-Nonanone, also known as methyl n-amyl ketone, is a colorless to pale yellow liquid with a strong, sweet, fruity odor. It is primarily used as a flavoring agent and fragrance in the food and cosmetic industries. 2-Nonanone is also utilized as a solvent for nitrocellulose, lacquers, and polymers. It is a ketone compound with the molecular formula C9H18O, and it is produced from undecene through oxidation or from nonanoic acid through dehydration. 2-Nonanone is classified as a low-toxicity substance but may cause irritation to the eyes, skin, and respiratory system upon exposure.

Check Digit Verification of cas no

The CAS Registry Mumber 821-55-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 821-55:
(5*8)+(4*2)+(3*1)+(2*5)+(1*5)=66
66 % 10 = 6
So 821-55-6 is a valid CAS Registry Number.
InChI:InChI=1/C9H18O/c1-3-4-5-6-7-8-9(2)10/h3-8H2,1-2H3

821-55-6 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
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  • Alfa Aesar

  • (A11781)  2-Nonanone, 98+%   

  • 821-55-6

  • 50g

  • 221.0CNY

  • Detail
  • Alfa Aesar

  • (A11781)  2-Nonanone, 98+%   

  • 821-55-6

  • 100g

  • 425.0CNY

  • Detail
  • Alfa Aesar

  • (A11781)  2-Nonanone, 98+%   

  • 821-55-6

  • 1000g

  • 3592.0CNY

  • Detail
  • Sigma-Aldrich

  • (63969)  2-Nonanone  analytical standard

  • 821-55-6

  • 63969-1ML

  • 456.30CNY

  • Detail

821-55-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name nonan-2-one

1.2 Other means of identification

Product number -
Other names 2-Nonanon

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:821-55-6 SDS

821-55-6Relevant articles and documents

Ru(iii) -based polyoxometalate tetramers as highly efficient heterogeneous catalysts for alcohol oxidation reactions at room temperature

Li, Huafeng,Ma, Pengtao,Niu, Jingyang,Song, Junpeng,Wang, Jingping,Wang, Yaqiong,Zhao, Xue,Zou, Yan

, p. 12664 - 12673 (2021/09/28)

A novel ruthenium-containing polyoxometalate-based organic-inorganic hybrid, K4Na9H7.4[(AsW9O33)4(WO2)4{Ru3.2(C3H3N2)2}]·42H2O (1), was successfully synthesized by a one-step hydrothermal method under acidic conditions, which applied a self-assembly strategy between inorganic polyoxometalate based on trivacant [B-α-AsW9O33]9?{AsW9} fragments and an organic ligand, imidazole (C3H4N2). Compound1was further characterized by single-crystal X-ray diffraction, PXRD, IR spectroscopy, UV-Vis spectroscopy, ESI-MS, elemental analysis and TGA. Single-crystal X-ray diffraction data reveal that the polyanion consists of four trivacant Keggin-type polyanion {AsW9} building blocks bridged by four {WO6} units, leading to a crown-shaped tetrameric structure [(AsW9O33)4(WO2)4{Ru3.2(C3H3N2)2}]20.4?. The ESI-MS result reveals that the polyanion unit has excellent structural integrity in water. Moreover, the catalysis study of1was also further investigated, and the experimental results indicate heterogeneous catalyst1presents high efficiency (yield = 98%), excellent selectivity (>99%), and good recyclability for the oxidation of 1-(4-chlorophenyl)ethanol to 4′-chloroacetophenone with commercially available 70% aqueoustert-butyl hydroperoxide {TBHP (aq.)} as the oxidant at room temperature.

Hydration of Alkynes to Ketones with an Efficient and Practical Polyoxomolybdate-based Cobalt Catalyst

Xie, Ya,Wang, Jingjing,Wang, Yunyun,Han, Sheng,Yu, Han

, p. 4985 - 4989 (2021/10/12)

Hydration of alkynes to ketones is one of the most atom economical and universal methods for the synthesis of carbonyl compounds. However, the basic reaction usually requires organic ligand catalysts or harsh reaction conditions to insert oxygen into the C≡C bond. Here, we report an inorganic ligand supported cobalt (III) catalyst, (NH4)3[CoMo6O18(OH)6], which is supported by a central cobalt (III) mononucleus and a ring-shaped pure inorganic ligand composed of six MoVIO6 octahedrons to avoid the disadvantages of expensive and unrecyclable organic ligand catalysts or noble metal catalysts. Under mild conditions, the cobalt (III) catalyst can be used for the hydration of alkynes to ketones. The catalyst is non-toxic, green, and environment friendly. The catalyst can be recycled at least six times with high activity. According to control experiments, a reasonable mechanism is provided.

Photocontrolled Cobalt Catalysis for Selective Hydroboration of α,β-Unsaturated Ketones

Beltran, Frédéric,Bergamaschi, Enrico,Funes-Ardoiz, Ignacio,Teskey, Christopher J.

supporting information, p. 21176 - 21182 (2020/09/17)

Selectivity between 1,2 and 1,4 addition of a nucleophile to an α,β-unsaturated carbonyl compound has classically been modified by the addition of stoichiometric additives to the substrate or reagent to increase their “hard” or “soft” character. Here, we demonstrate a conceptually distinct approach that instead relies on controlling the coordination sphere of a catalyst with visible light. In this way, we bias the reaction down two divergent pathways, giving contrasting products in the catalytic hydroboration of α,β-unsaturated ketones. This includes direct access to previously elusive cyclic enolborates, via 1,4-selective hydroboration, providing a straightforward and stereoselective route to rare syn-aldol products in one-pot. DFT calculations and mechanistic experiments confirm two different mechanisms are operative, underpinning this unusual photocontrolled selectivity switch.

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