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

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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)

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Safety

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

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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.

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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

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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

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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

Shanghai Xingui Biotechnology Co., Ltd.

Tel: 17501653715
Email: xingui2022@126.com
Country: China
ProdList: 10015
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 94657
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 021-61259108 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
Advantage: 81

Beijing Ouhe Technology Co., Ltd

Tel: 010-82967028 13552068683
Fax: +86-10-82967029
Email: 2355560935@qq.com
Country: China
ProdList: 12390
Advantage: 60

Shanghai Longsheng chemical Co.,Ltd.

Tel: 021-58099652-8005 13585536065
Fax: 021-58099609
Email: bin.wu@shlschem.com
Country: China
ProdList: 9809
Advantage: 59

Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696
Email: info@hanhongsci.com
Country: China
ProdList: 42958
Advantage: 64

Maya High Purity Chemicals

Tel: +86 (573) 82222445 (0)18006601000 452520369
Fax: +86 (573) 82222643
Email: sales@maya-r.com
Country: China
ProdList: 11707
Advantage: 57

BOC Sciences

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

Thermo Fisher Scientific

Tel: 800-810-5118
Fax: +86-10-84193589
Email: cnchemical@thermofisher.com
Country: China
ProdList: 17770
Advantage: 75

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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