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5450-21-5

Ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate is a complex organic compound with the chemical formula C10H14O4. It is a derivative of pyran, a heterocyclic compound consisting of a six-membered ring with one oxygen atom. The molecule features two methyl groups at the 4 and 6 positions, a carbonyl group at the 2 position, and an ethyl ester group at the 5 position. ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate is synthesized through various chemical reactions and is used in the pharmaceutical and chemical industries as an intermediate in the synthesis of various drugs and other organic compounds. Its unique structure and properties make it a valuable building block in the development of new molecules with potential applications in medicine, agriculture, and other fields.

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  • 5450-21-5 Structure

  • Basic information

    1. Product Name: ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate
    2. Synonyms:
    3. CAS NO:5450-21-5
    4. Molecular Formula: C10H14O4
    5. Molecular Weight: 198.2158
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 5450-21-5.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 296.1°C at 760 mmHg
    3. Flash Point: 145.3°C
    4. Appearance: N/A
    5. Density: 1.117g/cm3
    6. Vapor Pressure: 0.00147mmHg at 25°C
    7. Refractive Index: 1.468
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate(CAS DataBase Reference)
    11. NIST Chemistry Reference: ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate(5450-21-5)
    12. EPA Substance Registry System: ethyl 4,6-dimethyl-2-oxo-3,4-dihydro-2H-pyran-5-carboxylate(5450-21-5)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 5450-21-5(Hazardous Substances Data)

5450-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5450-21-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,5 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5450-21:
(6*5)+(5*4)+(4*5)+(3*0)+(2*2)+(1*1)=75
75 % 10 = 5
So 5450-21-5 is a valid CAS Registry Number.

5450-21-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl 4,6-dimethyl-2-oxo-3,4-dihydropyran-5-carboxylate

1.2 Other means of identification

Product number -
Other names ETHYL 2,4-DIMETHYL-6-OXO-4,5-DIHYDROPYRAN-3-CARBOXYLATE

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:5450-21-5 SDS

5450-21-5Downstream Products

5450-21-5Relevant articles and documents

Chiral N-heterocyclic carbene catalyzed annulation of α,β- unsaturated aldehydes with 1,3-dicarbonyls

Zhu, Zhi-Qiang,Zheng, Xing-Liang,Jiang, Ning-Fei,Wan, Xiaolong,Xiao, Ji-Chang

supporting information; experimental part, p. 8670 - 8672 (2011/09/16)

Chiral N-heterocyclic carbene catalyzed annulations of ynals and enals with 1,3-dicarbonyls have been described. The two reactions provided direct and efficient methods for enantioselective synthesis of functionalized dihydropyranones. Comparatively, the reactions starting from ynals were atom-economical; furthermore the reactions of enals demonstrated broader substrate compatibility. The Royal Society of Chemistry 2011.

Ni(II) Tol-BINAP-catalyzed enantioselective Michael reactions of β-ketoesters and unsaturated N-acylthiazolidinethiones

Evans, David A.,Thomson, Regan J.,Franco, Francisco

, p. 10816 - 10817 (2007/10/03)

The enantioselective addition of β-ketoesters to unsaturated N-acylthiazolidinethiones catalyzed by Ni(II) Tol-BINAP Lewis acid complexes is reported. Notable features of this reaction are its operation simplicity, the obviated need for the addition of an

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