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Methyl 3-hydroxythiophene-2-carboxylate

CAS No.
5118-06-9
Chemical Name:
Methyl 3-hydroxythiophene-2-carboxylate
Synonyms
3-hydro-2-thiophenca;METHYL-3-HYDROXYTHIOPHENE CARBOXYLATE;Methyl-3-hydroxythiophen-2-carboxylat;3-Hydroxy-2-(methoxycarbonyl)thiophene;METHYL 3-HYDROXY-2-THIOPHENECARBOXYLATE;Methyl 3-hydroxythiophene-3-carboxylate;METHYL 3-HYDROXYTHIOPHENE-2-CARBOXYLATE;Merhyl 3-hydroxy thiophene 2-carboxylate;Methyl 3-hydroxythiophene-2-carboxylate ,97%;2-Thiophenecarboxylicacid,3-hydroxy-,methylester
CBNumber:
CB7160233
Molecular Formula:
C6H6O3S
Molecular Weight:
158.18
MDL Number:
MFCD00055642
MOL File:
5118-06-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:59:00
Product description Number Pack Size Price
Methyl 3-hydroxythiophene-2-carboxylate 97% 566977 500mg $95.9
Methyl 3-Hydroxy-2-thiophenecarboxylate >97.0%(GC) M2716 1g $28
Methyl 3-Hydroxy-2-thiophenecarboxylate >97.0%(GC) M2716 5g $85
3-Hydroxy-2-thiophenecarboxylicAcidMethylEster H947615 2.5g $195
Methyl 3-hydroxythiophene-2-carboxylate 99.61% CS-M0427 100g $650
More product size

Methyl 3-hydroxythiophene-2-carboxylate Properties

Melting point 38-43 °C(lit.)
Boiling point 107-109°C 13mm
Density 1.372±0.06 g/cm3(Predicted)
Flash point >230 °F
storage temp. Keep in dark place,Sealed in dry,Room Temperature
pka 9.47±0.10(Predicted)
form powder to crystal
color White to Orange to Green
Water Solubility Slightly soluble in water.
InChI InChI=1S/C6H6O3S/c1-9-6(8)5-4(7)2-3-10-5/h2-3,7H,1H3
InChIKey SEMVRXMFCHXUMD-UHFFFAOYSA-N
SMILES C1(C(OC)=O)SC=CC=1O
CAS DataBase Reference 5118-06-9(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-37/39-26
WGK Germany  3
HazardClass  IRRITANT
HS Code  29309090
Storage Class 11 - Combustible Solids
NFPA 704
1
2 0

Methyl 3-hydroxythiophene-2-carboxylate price More Price(45)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 566977 Methyl 3-hydroxythiophene-2-carboxylate 97% 5118-06-9 500mg $95.9 2023-06-20 Buy
TCI Chemical M2716 Methyl 3-Hydroxy-2-thiophenecarboxylate >97.0%(GC) 5118-06-9 1g $28 2026-03-19 Buy
TCI Chemical M2716 Methyl 3-Hydroxy-2-thiophenecarboxylate >97.0%(GC) 5118-06-9 5g $85 2026-03-19 Buy
TRC H947615 3-Hydroxy-2-thiophenecarboxylicAcidMethylEster 5118-06-9 2.5g $195 2021-12-16 Buy
ChemScene CS-M0427 Methyl 3-hydroxythiophene-2-carboxylate 99.61% 5118-06-9 100g $650 2021-12-16 Buy
Product number Packaging Price Buy
566977 500mg $95.9 Buy
M2716 1g $28 Buy
M2716 5g $85 Buy
H947615 2.5g $195 Buy
CS-M0427 100g $650 Buy

Methyl 3-hydroxythiophene-2-carboxylate Chemical Properties,Uses,Production

Uses

3-Hydroxy-2-thiophenecarboxylic Acid Methyl Ester, is used as a reactant in synthesizing nitro-products where reaction occurs with thiophenol.

Chemical Properties

white to light yellow crystal powder

Uses

Methyl 3-hydroxythiophene-2-carboxylate is used in medicine.

Synthesis Reference(s)

Synthetic Communications, 9, p. 731, 1979 DOI: 10.1080/00397917908064186

Synthesis

METHYL ALPHA-CHLOROACRYLATE

80-63-7

Methyl thioglycolate

2365-48-2

Methyl 3-hydroxythiophene-2-carboxylate

5118-06-9

Methyl 3-hydroxy-2-thiophenecarboxylate was synthesized according to the method reported by Huddleston and Barker in Synth. Commun. 1979,9,8,731-734. The procedure was as follows: a 2 M solution of sodium methanol was prepared by adding sodium (700 mg; 30 mmol) to 15 mL of anhydrous methanol. Methyl mercaptoacetate (1.9 g; 18 mmol) was then added. The reaction solution was cooled to 0°C and methyl 2-chloroacrylate (2.1 g; 17.4 mmol) was added slowly and dropwise. The reaction mixture was stirred at room temperature overnight. After the reaction was complete, the mixture was cooled to 0°C again and the reaction was quenched with 4 M aqueous hydrochloric acid (~5 mL). Water was added and extracted twice with ethyl acetate. The organic phases were combined, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to give 2.0 g (70% yield) of brown oil, which solidified to a solid product after drying. The product could be used for subsequent reactions without further purification. The product was characterized as follows: LCMS m/z [M-H]-, retention time tR = 4.12 min, purity (UV/MS) 98/20; GCMS m/z 158 (M+), retention time tR = 4.52 min; 1H NMR (CDCl3, 400 MHz) δ 9.56 (br s, 1H, OH), 7.37 (d, 1H, J = 5.2 Hz, thiophene H), 6.74 (d, 1H, J = 5.2 Hz, thiophene H), 3.89 (s, 3H, OMe).

References

[1] Pesticide Science, 1996, vol. 48, # 4, p. 351 - 358
[2] Patent: WO2008/48648, 2008, A2. Location in patent: Page/Page column 70
[3] Helvetica Chimica Acta, 2002, vol. 85, # 12, p. 4485 - 4517
[4] Bioorganic and Medicinal Chemistry, 2003, vol. 11, # 20, p. 4333 - 4340
[5] Patent: US7452730, 2008, B2

5788-17-0
2365-48-2
5118-06-9
Synthesis of Methyl 3-hydroxythiophene-2-carboxylate from METHYL 3-METHOXYACRYLATE and Methyl thioglycolate
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View Lastest Price from Methyl 3-hydroxythiophene-2-carboxylate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Methyl 3-hydroxythiophene-2-carboxylate  pictures 2025-11-18 Methyl 3-hydroxythiophene-2-carboxylate
5118-06-9
US $1.10 / g 1g 99.00% 100 Tons Dideu Industries Group Limited
3-Hydroxythiophene-2-carboxylic acid methyl ester pictures 2025-03-05 3-Hydroxythiophene-2-carboxylic acid methyl ester
5118-06-9
US $786.00 / g 1g 98 5000 Kg R&D Scientific Inc.
Methyl 3-hydroxythiophene-2-carboxylate pictures 2019-07-06 Methyl 3-hydroxythiophene-2-carboxylate
5118-06-9
US $8.00 / kg 1kg 99% 10tons Career Henan Chemical Co

Methyl 3-hydroxythiophene-2-carboxylate Spectrum

METHYL 3-HYDROXYTHIOPHENE-2-CARBOXYLATE METHYL-3-HYDROXYTHIOPHENE CARBOXYLATE METHYL 3-HYDROXY-2-THIOPHENECARBOXYLATE 3-HYDROXYTHIOPHENE-2-CARBOXYLIC ACID METHYL ESTER Methyl 3-hydroxythiophene-2-carboxylate ,97% 3-hydro-2-thiophenca 3-Hydroxy-2-(methoxycarbonyl)thiophene 3-Hydroxy-2-thiophenecarboxylic acid Methyl ester 2-Thiophenecarboxylicacid,3-hydroxy-,methylester Methyl 3-hydroxythiophene-3-carboxylate Methyl 3-hydroxythiophene-2-carboxylate ISO 9001:2015 REACH Merhyl 3-hydroxy thiophene 2-carboxylate 5118-06-9 Methyl 3-hydroxythiophene-2-carboxylate Methyl-3-hydroxythiophen-2-carboxylat 5118-06-9 5118-6-9 5188-06-9 1175511 Building Blocks Heterocyclic Building Blocks Thiophenes Thiophenes & Benzothiophenes Building Blocks Heterocyclic Building Blocks Thiophenes Esters Thiophenes & Benzothiophenes