ChemBK
  • Home
  • Product Category

2-Methyl-3-hydroxy-.gamma.-pyranone

3-hydroxy-2-methyl-4-pyrone

CAS: 118-71-8

Molecular Formula: C6H6O3

  1. Home
  2. Product Category
  3. Organic raw materials
  4. Phenolic compounds
  5. 2-Methyl-3-hydroxy-.gamma.-pyranone

2-Methyl-3-hydroxy-.gamma.-pyranone - Names and Identifiers

Name 3-hydroxy-2-methyl-4-pyrone
Synonyms Maltol
3-hydroxy-2-methyl-4-pyrone
3-Hydroxy-2-Methyl-4H-Pyran-4-One
2-Methyl-3-hydroxy-.gamma.-pyranone
CAS 118-71-8
EINECS 204-271-8
InChI InChI=1/C7H8O3/c1-2-6-7(9)5(8)3-4-10-6/h3-4,9H,2H2,1H3
InChIKey XPCTZQVDEJYUGT-UHFFFAOYSA-N

2-Methyl-3-hydroxy-.gamma.-pyranone - Physico-chemical Properties

Molecular FormulaC6H6O3
Molar Mass126.112
Density1.261g/cm3
Melting Point160-164℃
Boling Point290.3°C at 760 mmHg
Flash Point124.8°C
Water Solubility1.2 g/100 mL (25℃)
Solubility Solubility in water: 12g/L (25°C), soluble in ethanol and propylene glycol, soluble in benzene and ether in a small amount
Vapor Presure0.000228mmHg at 25°C
AppearanceForm Liquid, color Clear colorless
pKa8.41±0.10(Predicted)
PH5.3 (0.5g/l, H2O)
Storage Condition2-8°C
Refractive Index1.54
MDLMFCD00006578
Physical and Chemical PropertiesMelting point 160-164°C
boiling point 170°C (10 mmHg)
water-soluble 1.2g/100 mL (25°C)
UseUsed as food additives, flavors, can be used for tobacco flavor

2-Methyl-3-hydroxy-.gamma.-pyranone - Risk and Safety

Hazard SymbolsXn - Harmful
Harmful
Risk CodesR22 - Harmful if swallowed
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety DescriptionS26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
UN IDsUN 3334
WGK Germany3
RTECSUQ1050000
TSCAYes
HS Code29329995

2-Methyl-3-hydroxy-.gamma.-pyranone - Upstream Downstream Industry

Raw MaterialsTetrahydrofuran
Chloroform
Magnesium
Diethyl oxalate
ZINC
Benzyl chloride
Sodium ethoxide
Manganese dioxide
Oxygen
Cyclohexane
Furfural
Methyl bromide
Furfuryl alcohol
Soy bean Isoflavone Isoflavone 10-40%
CREOSOTE
Benzyl ether
Kojic acid
Pyromeconic acid
Downstream ProductsTobacco essence

2-Methyl-3-hydroxy-.gamma.-pyranone - Reference

Reference
Show more
1. Xu Yanyang, Zhao Yujuan, Gao Feng, Wang Erlei, Lu Hailing, Li Xuefeng, Jiang Wenwen, Chen Yan. Analysis of Polyphenols in Different Parts of Chinese Ginseng by High Performance Liquid Chromatography [J]. Food Science, 2021,42(04):240-246.

2-Methyl-3-hydroxy-.gamma.-pyranone - Standard

Authoritative Data Verified Data

This product is 3-hydroxy-2-methyl-4-pyrone. The content of C6H603 shall not be less than 99.0% calculated as anhydrous.

Last Update：2024-01-02 23:10:35

2-Methyl-3-hydroxy-.gamma.-pyranone - Trait

Authoritative Data Verified Data
  • This product is a white crystalline powder; With Coke 'hard or cream-like aroma.
  • This product is soluble in ethanol or propylene glycol, and slightly soluble in water or glycerin.

melting point

The melting point of this product (General rule 0612) is 160~1 6 4 1.

Last Update：2022-01-01 11:22:27

2-Methyl-3-hydroxy-.gamma.-pyranone - Differential diagnosis

Authoritative Data Verified Data
  1. the solution under the content measurement was measured by ultraviolet-visible spectrophotometry (General 0401), and the maximum absorption was found at a wavelength of 274nm.
  2. The infrared absorption spectrum of this product should be consistent with that of the reference product (General rule 0402).
Last Update：2022-01-01 11:22:28

2-Methyl-3-hydroxy-.gamma.-pyranone - Exam

Authoritative Data Verified Data

moisture

take this product, according to the moisture determination method (General Principles 0832 first method) determination, shall not pass 0 .5%.

ignition residue

The l.O g of this product shall be taken for inspection according to law (General rule 0841), and the remaining residue shall not exceed.

Lead

lead shall not exceed 10 parts per million as determined by the methods for the determination of lead, cadmium, arsenic, mercury and copper (General rule 2321).

Heavy metals

The residue left under the item of taking the ignition residue shall not contain more than 20 parts per million of heavy metal when examined by law (General rule 0821, Law II).

arsenic salt

take this product 0. 67G, at 450-0822 T: after burning to complete Ash, take the residue, according to inspection (general principles the first law), should comply with the provisions (0. 0003%).

Last Update：2022-01-01 11:22:28

2-Methyl-3-hydroxy-.gamma.-pyranone - Content determination

Authoritative Data Verified Data

take about 50m g of this product, weigh it accurately, put it in a 250ml measuring flask, dissolve it with 0. lm o l/L hydrochloric acid solution and dilute it to the scale, shake it well. Take 5ml for precision measurement, put it in a 100ml measuring flask, use 0. Dilute lm o l/L hydrochloric acid solution to the scale, shake well, measure absorbance at the wavelength of 274nm according to UV-Vis spectrophotometry (General rule 0401), the same method of determination, that is to say.

Last Update：2022-01-01 11:22:29

2-Methyl-3-hydroxy-.gamma.-pyranone - Category

Authoritative Data Verified Data

pharmaceutical excipients, flavors and fragrances.

Last Update：2022-01-01 11:22:29

2-Methyl-3-hydroxy-.gamma.-pyranone - Storage

Authoritative Data Verified Data

sealed and protected from light.

Last Update：2022-01-01 11:22:29
2-Methyl-3-hydroxy-.gamma.-pyranone
Supplier List
JIANGSU BSECHEM CHEMICAL TECHNOLOGY CO., LTD.
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685 Click to send a QQ messageSend QQ message
Nantong Reform Petro-Chemical CO., LTD.
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-17551318830
Email: r@reformchem.com­
Mobile: +86-17551318830
QQ: 3785839865 Click to send a QQ messageSend QQ message
Jiangsu Pules Biotechnology Co.,Ltd.
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Spot supply
Product Name: Deferiprone Impurity 4 (Deferiprone EP Impurity B) Visit Supplier Webpage Request for quotation
CAS: 118-71-8
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052 Click to send a QQ message
Wechat: 15671228036
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Wuhan Xingzhongcheng Chemical limited company
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 86+027-83389957
Email: 1024042217@qq.com
Mobile: 86+18627766980
QQ: 1024042217 Click to send a QQ message
Wechat: 18627766980
Shanghai Yuanye Bio-Technology Co., Ltd.
Multiple SpecificationsSpot supply
Product Name: Maltol Visit Supplier Webpage Request for quotation
CAS: 118-71-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Shanghai Worldyang Chemical Co.,Ltd.
Product Name: 3-Hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228 Click to send a QQ message
Wechat: 13651600618
WhatsApp: +8613651600618
Hangzhou Verychem Science And Technology Co.Ltd
Product Name: maltol Request for quotation
CAS: 118-71-8
Tel: +86-571-88162785
Email: Lucy@verypharm.com
Mobile: +86-13606544505
QQ: 472954302 Click to send a QQ message
Product List: View Catalog
JIANGSU BSECHEM CHEMICAL TECHNOLOGY CO., LTD.
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685 Click to send a QQ messageSend QQ message
Nantong Reform Petro-Chemical CO., LTD.
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-17551318830
Email: r@reformchem.com­
Mobile: +86-17551318830
QQ: 3785839865 Click to send a QQ messageSend QQ message
Jiangsu Pules Biotechnology Co.,Ltd.
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Spot supply
Product Name: Deferiprone Impurity 4 (Deferiprone EP Impurity B) Visit Supplier Webpage Request for quotation
CAS: 118-71-8
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052 Click to send a QQ message
Wechat: 15671228036
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Wuhan Xingzhongcheng Chemical limited company
Spot supply
Product Name: 3-hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: 86+027-83389957
Email: 1024042217@qq.com
Mobile: 86+18627766980
QQ: 1024042217 Click to send a QQ message
Wechat: 18627766980
Shanghai Yuanye Bio-Technology Co., Ltd.
Multiple SpecificationsSpot supply
Product Name: Maltol Visit Supplier Webpage Request for quotation
CAS: 118-71-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Shanghai Worldyang Chemical Co.,Ltd.
Product Name: 3-Hydroxy-2-methyl-4-pyrone Request for quotation
CAS: 118-71-8
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228 Click to send a QQ message
Wechat: 13651600618
WhatsApp: +8613651600618
Hangzhou Verychem Science And Technology Co.Ltd
Product Name: maltol Request for quotation
CAS: 118-71-8
Tel: +86-571-88162785
Email: Lucy@verypharm.com
Mobile: +86-13606544505
QQ: 472954302 Click to send a QQ message
Product List: View Catalog
View History
2-Methyl-3-hydroxy-.gamma.-pyranone
2,4-二甲基-5-氨基吡啶
Raw Materials for 2-Methyl-3-hydroxy-.gamma.-pyranone
Tetrahydrofuran
Chloroform
Magnesium
Manganese dioxide
Oxygen
Cyclohexane
Furfural
Furfuryl alcohol
CREOSOTE
Benzyl ether
Kojic acid
Downstream Products for 2-Methyl-3-hydroxy-.gamma.-pyranone
Tobacco essence
  • Home
  • Product Category

© 2015, 2023 ChemBK.com All Rights Reserved | Build: 20230617001