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26494-10-0

4-Hydroxy-2,5-dimethylthiophen-3(2H)-one is a chemical compound with the molecular formula C6H8OS. It is a heterocyclic compound, specifically a thiophene derivative, characterized by the presence of a sulfur atom in the ring structure. 4-hydroxy-2,5-dimethylthiophen-3(2H)-one features a hydroxyl group (-OH) at the 4-position, and two methyl groups (-CH3) at the 2 and 5 positions. The 3(2H)-one notation indicates that the compound has a ketone functional group at the 3-position, with the carbonyl group (C=O) being part of a six-membered ring. This chemical is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals, as well as in the production of specialty chemicals. Its unique structure and properties make it a valuable intermediate in organic synthesis.

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  • 26494-10-0 Structure

  • Basic information

    1. Product Name: 4-hydroxy-2,5-dimethylthiophen-3(2H)-one
    2. Synonyms: 4-hydroxy-2,5-dimethylthiophen-3(2H)-one;3(2H)-Thiophenone, 4-hydroxy-2,5-dimethyl-
    3. CAS NO:26494-10-0
    4. Molecular Formula: C6H8O2S
    5. Molecular Weight: 144.19152
    6. EINECS: 247-742-3
    7. Product Categories: N/A
    8. Mol File: 26494-10-0.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 251.3°Cat760mmHg
    3. Flash Point: 105.8°C
    4. Appearance: /
    5. Density: 1.299g/cm3
    6. Vapor Pressure: 0.00326mmHg at 25°C
    7. Refractive Index: 1.588
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 4-hydroxy-2,5-dimethylthiophen-3(2H)-one(CAS DataBase Reference)
    11. NIST Chemistry Reference: 4-hydroxy-2,5-dimethylthiophen-3(2H)-one(26494-10-0)
    12. EPA Substance Registry System: 4-hydroxy-2,5-dimethylthiophen-3(2H)-one(26494-10-0)

  • 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: 26494-10-0(Hazardous Substances Data)

26494-10-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26494-10-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,4,9 and 4 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 26494-10:
(7*2)+(6*6)+(5*4)+(4*9)+(3*4)+(2*1)+(1*0)=120
120 % 10 = 0
So 26494-10-0 is a valid CAS Registry Number.
InChI:InChI=1/C6H8O2S/c1-3-5(7)6(8)4(2)9-3/h3,8H,1-2H3

26494-10-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-hydroxy-2,5-dimethylthiophen-3-one

1.2 Other means of identification

Product number -
Other names 4-Hydroxy-2,5-dimethylthiophen-3(2H)-one

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:26494-10-0 SDS

26494-10-0Downstream Products

26494-10-0Relevant articles and documents

o-quinonoid heterocycles: Synthesis and crystal structure of 2,3-dicyano-5,7-bismethylthieno[3,4-b]pyrazine

Morkved, Eva H.,Beukes, Jon A.,Mo, Frode

, p. 1623 - 1631 (2007)

2,3-Dicyano-5,7-bismethylthieno[3,4-b]pyrazine (5), has been obtained as a minor product from reactions of S-nucleophiles with 5,6-di(1-bromoethyl) pyrazine-2,3-dicarbonitrile (3), or from a condensation of 4-hydroxy-2,5- dimethyl-2,3-dihydrothiophen-3-on

Identification of Potent Aroma Compounds in Thermally Treated Mixtures of Glucose/Cysteine and Rhamnose/Cysteine Using Aroma Extract Dilution Techniques

Hofmann, Thomas,Schieberle, Peter

, p. 898 - 906 (2007/10/03)

Application of an aroma extract dilution analysis on extracts prepared from either thermally treated solutions (20 min, 145 °C) of glucose/cysteine (I) or rhamnose/cysteine (II) led to the identification of 2-furfurylthiol (roasty, coffee-like), 5-acetyl-2,3-dihydro-1,4-thiazine (roasty), 3-mercapto-2-butanone (sulfury, rotten), 3-mercapto-2-pentanone (catty), and 4-hydroxy-2,5-dimethyl-3(2H)-furanone (caramel-like) with the highest odor activities among the 34 odor-active volatiles detected in I. In II, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, 3-hydroxy-6-methyl-2(2H)-pyranone (seasoning-like), 5-methyl-2-furfurylthiol (roasty, coffee-like), 2-furfurylthiol, and 5-acetyl-2,3-dihydro-l,4-thiazine appeared with the highest flavor dilution (FD) factors among the 18 compounds detected by HRGC/O. Among the flavor compounds identified, 2-propionyl-2-thiazoline is reported for the first time among the flavors of Maillard model reactions or foods, respectively. The odorant elicited an intense roasty, popcorn-like odor at the low odor threshold of 0.07 ng/L in air.

Certain lower alkyl 4,5-dihydrothiophene-3-thiols

-

, (2008/06/13)

Novel sulphur containing food flavor substances are provided containing an oxygen or sulphur atom in a five or six membered ring structure, one alkyl or hydroxy alkyl substituent at at least either of the carbon atoms adjacent to the hetero atom and having at least one sulphur or oxygen atom attached to another carbon atom of the ring structure.

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