ALPHA-PYRONE

Product Name: ALPHA-PYRONE
CAS No.: 504-31-4
Chemical Name: ALPHA-PYRONE
Synonyms: 2H-PYRAN-2-ONE;2-Pyrone;Coumalin;α-Pyron;cumalin;-Pyrone;α-pyrone;α-Pyrone;2-Pyranone;pyran-2-one
CBNumber: CB6766803
Molecular Formula: C5H4O2
Formula Weight: 96.08
MOL File: 504-31-4.mol

More

Less

ALPHA-PYRONE Property

Melting point:: 8-9 °C
Boiling point:: 102-103 °C20 mm Hg(lit.)
Density: 1.197 g/mL at 25 °C(lit.)
refractive index: n20/D 1.53(lit.)
Flash point:: 94 °C
storage temp.: 2-8°C
form: Liquid
color: Clear yellow to brown
Odor: Pleasant hay-like, herbaceous-warm odor
BRN: 1511
LogP: -0.645 (est)

More

Less

Safety

Safety Statements: 23-24/25
WGK Germany: 3
F: 8-9-23
HS Code: 29322090

More

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 463159
Product name: 2H-Pyran-2-one
Purity: 90%
Packaging: 1g
Price: $243
Updated: 2024/03/01

TCI Chemical

Product number: P1183
Product name: α-Pyrone
Purity: >98.0%(GC)
Packaging: 1g
Price: $175
Updated: 2024/03/01

TRC

Product number: A345500
Product name: α-Pyrone
Packaging: 10mg
Price: $45
Updated: 2021/12/16

AK Scientific

Product number: X6757
Product name: alpha-Pyrone
Packaging: 250mg
Price: $124
Updated: 2021/12/16

Activate Scientific

Product number: AS145932
Product name: Pyran-2-one
Purity: 97%
Packaging: 5G
Price: $693
Updated: 2021/12/16

More

Less

ALPHA-PYRONE Chemical Properties,Usage,Production

Chemical Properties

clear yellow to brown liquid.
Polymerizes easily upon standing, particularly under alkaline conditions. Very slightly soluble in water, soluble in alcohol and oils.

Definition

ChEBI: 2H-pyran-2-one is the simplest member of the class of 2-pyranones that is 2H-pyran with an oxo substituent at position 2.

Synthesis Reference(s)

Journal of the American Chemical Society, 90, p. 2318, 1968 DOI: 10.1021/ja01011a020
Organic Syntheses, Coll. Vol. 6, p. 462, 1988

General Description

2H-Pyran-2-one (a-Pyrone) is a heterocyclic building block. Photochemistry of 2H-pyran-2-one has been investigated by laser flash photolysis with infrared detection. Ketene and a bicyclic lactone were obtained as major photoproducts.

Purification Methods

Dissolve -pyrone in Et2O, wash it with brine, dry (Na2SO4), f

ALPHA-PYRONE Preparation Products And Raw materials

Raw materials

Preparation Products

More

Less

ALPHA-PYRONE Suppliers

Americas 1 Belgium 3 Canada 1 China 77 Europe 1 France 1 Germany 2 India 3 Japan 3 Slovakia 1 Switzerland 2 United Kingdom 2 United States 19 Global 116

BOC Sciences

Tel: 1-631-485-4226; 16314854226
Email: info@bocsci.com
Country: United States
ProdList: 14055
Advantage: 65

Aladdin Scientific

Tel: +1-+1(833)-552-7181
Email: sales@aladdinsci.com
Country: United States
ProdList: 52924
Advantage: 58

Aladdin Scientific

Tel: +1-+1(833)-552-7181
Email: sales@aladdinsci.com
Country: United States
ProdList: 57505
Advantage: 58

Crescent Chemical Company

Tel: --
Fax: --
Email: fran@creschem.com
Country: United States
ProdList: 1441
Advantage: 58

Combi-Blocks, Inc.

Tel: --
Fax: --
Email: les@combi-blocks.com
Country: United States
ProdList: 2555
Advantage: 58

Alichem Inc.

Tel: --
Fax: --
Email: sales@alichem.com
Country: United States
ProdList: 6167
Advantage: 58

MilliporeSigma (Sigma-Aldrich Corp.)

Tel: --
Fax: --
Email: @sial.com
Country: United States
ProdList: 5414
Advantage: 58

TCI America, Inc. (part of Tokyo Chemical Industry)

Tel: --
Fax: --
Email: Angelina.Crew@tcichemicals.com
Country: United States
ProdList: 2053
Advantage: 58

2A Biotech USA

Tel: --
Fax: --
Email: info@2abiotech.com
Country: United States
ProdList: 1785
Advantage: 58

Spectrum Chemicals & Laboratory Products

Tel: --
Fax: --
Email: sales@spectrumchemical.com
Country: United States
ProdList: 6699
Advantage: 77

VWR International, LLC.

Tel: --
Fax: --
Email: @sargentwelch.com
Country: United States
ProdList: 6262
Advantage: 58

Advance Scientific & Chemical

Tel: --
Fax: --
Email: sales@advance-scientific.com
Country: United States
ProdList: 6419
Advantage: 71

Aurum Pharmatech, LLC

Tel: --
Fax: --
Email: sales@aurumpharmatech.com
Country: United States
ProdList: 498
Advantage: 0

Oakwood Products, Inc.

Tel: --
Fax: --
Email: sales@oakwoodchemical.com
Country: United States
ProdList: 6193
Advantage: 74

Combi-Blocks Inc.

Tel: --
Fax: --
Email: sales@combi-blocks.com
Country: United States
ProdList: 6618
Advantage: 69

Riedel-de Haen AG

Tel: --
Fax: --
Country: United States
ProdList: 6773
Advantage: 87

TCI America

Tel: --
Fax: --
Email: sales@tciamerica.com
Country: United States
ProdList: 6909
Advantage: 75

HONEST JOY HOLDINGS LIMITED

Tel: --
Fax: --
Email: sales@honestjoy.cn
Country: United States
ProdList: 6675
Advantage: 54

3B Scientific Corporation

Tel: --
Fax: --
Email: sales@3bsc.com
Country: United States
ProdList: 6718
Advantage: 47

More

Less

View Lastest Price from ALPHA-PYRONE manufacturers

Dideu Industries Group Limited

Product: ALPHA-PYRONE 504-31-4
Price: US $1.10/g
Min. Order: 1g
Purity: 99.00%
Supply Ability: 100 Tons Min
Release date: 2021-10-29

Nanjing jinheyou Trading Co., Ltd.

Product: ALPHA-PYRONE 504-31-4
Price: US $0.00/g
Min. Order: 1g
Purity: 98%min
Supply Ability: 20kg/month
Release date: 2019-11-01

Career Henan Chemical Co

Product: ALPHA-PYRONE 504-31-4
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 1ton
Release date: 2019-07-09

504-31-4, ALPHA-PYRONERelated Search:

3-CARBOMETHOXY-2-PYRONE 4-Methoxy-6-methyl-2H-pyran-2-one Methyl isodehydroacetate ISODEHYDROACETIC ACID 2,4-Dimethyl-alpha-pyrone,4,6-DIMETHYL-ALPHA-PYRONE 4,6-DIPHENYL-2-PYRONE 4-Hydroxy-6-methyl-2-pyrone Cinobufotalin 6-AMYL-ALPHA-PYRONE 96+%,6-N-Amyl alpha-pyrone,6-pentyl-alpha-pyrone,alpha-Pyrone, 6-pentyl,6-AMYL-ALPHA-PYRONE Methyl coumalate Bufalin ALPHA-PYRONE ALPHA-PYRONE-5-CARBOXYLIC ACID,alpha-Pyrone-3-carboxylic acid 5-Carbethoxy-4,6-dimethyl-2-pyrone Sodium dehydroacetate 4-methoxy-6-(beta-(p-anisyl)vinyl)-alpha-pyron 5-NITRO-4-CHROMANONE 5-Decanolide

chloro-4’phenyl-4methyl-6phenyl-3tetrahdyro-3,4,5,6pyrone-6(3r*,4s*,6r*

Coumalin

pyran-2-one

2H-PYRAN-2-ONE

α-pyrone

cumalin

tetrahydro-4-(4-chlorophenyl)-6-methyl-3-phenyl-,(3-alpha,4-beta,6-alpha)-2h-pyran-2-on

α-Pyron

ALPHA-PYRONE

2H-PYRAN-2-ONE 99%

2H-Pyran-2-one,97%

2H-Pyran-2-one,99%

Pyrone,alpha-

chloro-4’phenyl-

2H-Pyran-2-one, 97% 5GR

2,4-Pentadienoic acid, 5-hydroxy-, delta-lactone

2H-Pyran, 2-oxo-

2h-pyran-2-one,tetrahydro-4-(4-chlorophenyl)-6-methyl-3-phenyl-,(3-alpha,4-be

2-Pyranone

2-Pyrone

4-beta,6-alpha)-tetrahydro-4-(4-chlorophenyl)-6-methyl-3-phenyl-2h-(3-alph

α-Pyrone&gt

-Pyrone

ALPHA-PYRONE ISO 9001：2015 REACH

α-Pyrone

504-31-4

Building Blocks

Heterocyclic Building Blocks

Pyrans

Building Blocks

Chemical Synthesis

Heterocyclic Building Blocks

Pyrans