Methyl 3-amino-4-methylthiophene-2-carboxylate
- CAS No.
- 85006-31-1
- Chemical Name:
- Methyl 3-amino-4-methylthiophene-2-carboxylate
- Synonyms
- 3-AMINO-4-METHYL-2-THIOPHENECARBOXYLIC ACID METHYL ESTER;3-Amino Articaine;3-AMINO-4-METHYLTHIOPHENECARBOXYLIC ACID METHYL ESTER;M3A4MT2C;Articaine-002;Articaine Impurity I;Articaine Impurity 9;LABOTEST-BB LT00453517;Articaine EP Impurity I;Articaine intermediate E
- CBNumber:
- CB0189112
- Molecular Formula:
- C7H9NO2S
- Molecular Weight:
- 171.22
- MDL Number:
- MFCD00051822
- MOL File:
- 85006-31-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Methyl 3-amino-4-methylthiophene-2-carboxylate 97% | 546658 | 5g | $30.3 |
| Methyl 3-amino-4-methylthiophene-2-carboxylate certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland | PHR9159 | 100 mg | $891 |
| Methyl 3-amino-4-methylthiophene-2-carboxylate 97% | 546658 | 25g | $116 |
| Methyl 3-Amino-4-methylthiophene-2-carboxylate >98.0%(GC) | M1772 | 5g | $29 |
| Methyl 3-Amino-4-methylthiophene-2-carboxylate >98.0%(GC) | M1772 | 25g | $100 |
| More product size | |||
| Melting point | 85-88 °C (lit.) |
|---|---|
| Boiling point | 318.6±37.0 °C(Predicted) |
| Density | 1.264±0.06 g/cm3(Predicted) |
| Flash point | >100°C |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| pka | 1.71±0.10(Predicted) |
| form | Solid |
| color | Pale Yellow |
| Water Solubility | 1g/L at 35℃ |
| BRN | 973196 |
| InChI | 1S/C7H9NO2S/c1-4-3-11-6(5(4)8)7(9)10-2/h3H,8H2,1-2H3 |
| InChIKey | YICRPERKKBDRSP-UHFFFAOYSA-N |
| SMILES | COC(=O)c1scc(C)c1N |
| LogP | 1.28 |
| CAS DataBase Reference | 85006-31-1(CAS DataBase Reference) |
| FDA UNII | 3LA24473AS |
| NIST Chemistry Reference | Methyl 3-amino-4-methylthiophene-2-carboxylate(85006-31-1) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-24/25-22 | |||||||||
| WGK Germany | 2 | |||||||||
| Hazard Note | Irritant | |||||||||
| HS Code | 29349990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
Methyl 3-amino-4-methylthiophene-2-carboxylate price More Price(45)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 546658 | Methyl 3-amino-4-methylthiophene-2-carboxylate 97% | 85006-31-1 | 5g | $30.3 | 2026-03-19 | Buy |
| Sigma-Aldrich | PHR9159 | Methyl 3-amino-4-methylthiophene-2-carboxylate certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland | 85006-31-1 | 100 mg | $891 | 2026-03-19 | Buy |
| Sigma-Aldrich | 546658 | Methyl 3-amino-4-methylthiophene-2-carboxylate 97% | 85006-31-1 | 25g | $116 | 2026-03-19 | Buy |
| TCI Chemical | M1772 | Methyl 3-Amino-4-methylthiophene-2-carboxylate >98.0%(GC) | 85006-31-1 | 5g | $29 | 2026-03-19 | Buy |
| TCI Chemical | M1772 | Methyl 3-Amino-4-methylthiophene-2-carboxylate >98.0%(GC) | 85006-31-1 | 25g | $100 | 2026-03-19 | Buy |
Methyl 3-amino-4-methylthiophene-2-carboxylate Chemical Properties,Uses,Production
Chemical Properties
white to light yellow crystal powder
Uses
Methyl 3-Amino-4-methylthiophene-2-carboxylate is a versatile reactant used in various syntheses. It is used in the preparation of (oxalylamino)benzoic acids and (carboxyheteroarylamino)oxalic acids as selective and orally bioavailable nonpeptide inhibitors of protein-tyrosine phosphatase 1B.
Application
methyl 3-amino-4-methylthiophene-2-carboxylate is the starting material used in the synthesis of the local anesthetic articaine.
7-Methylthieno[3,2-d]pyrimidin-4(3H)-one was prepared using methyl 3-amino-4-methylthiophene-2-carboxylate.
The reaction of 4-bromotoluene (0.171 g, 1 mmol), methyl 3-amino-4-methylthiophene-2-carboxylate(0.342 g, 2 mmol) and KOAc (0.196 g, 2 mmol) in the presence of PdCl(C3H5)(dppb) (12.2 mg, 0.02mmol) in DMAc at 120 °C affords the corresponding Methyl 3-amino-4-methyl-5-p-tolylthiophene-2-carboxylate in 81% (0.212 g) isolated yield.
Definition
ChEBI: Methyl 3-amino-4-methylthiophene-2-carboxylate is a thiophenecarboxylic acid.


Methyl 3-amino-4-methylthiophene-2-carboxylate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 | deasea125996@gmail.com | China | 2472 | 58 |
| Hebei Xinsheng New Material Technology Co., LTD. | +86-16632316109 | xinshengkeji@xsmaterial.com | China | 1085 | 58 |
| Capot Chemical Co.,Ltd. | +86-(0)57185586718; +8613336195806 | sales@capot.com | China | 29640 | 60 |
| Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 | sales01@cooperate-pharm.com | CHINA | 1803 | 55 |
| Hi-Tech Chemistry Corp | 0519-86626038 | yuhh@hitechem.com | CHINA | 810 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21591 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29820 | 58 |
| Jinan Jianfeng Chemical Co., Ltd | +86-0531-88110457 +8615562555968 | info@pharmachemm.com | China | 311 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
View Lastest Price from Methyl 3-amino-4-methylthiophene-2-carboxylate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-04-29 | Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
|
US $0.00 / Kg/Drum | 1KG | 99%min HPLC | 1000kgs | WUHAN FORTUNA CHEMICAL CO., LTD | |
![]() |
2026-03-20 | Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
|
US $10.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
![]() |
2026-02-02 | Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
|
US $1.00-1.00 / KG | 1g | 99% | 50tons | Shaanxi Dideu Medichem Co. Ltd |
-

- Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
- US $0.00 / Kg/Drum
- 99%min HPLC
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- Methyl 3-amino-4-methylthiophene-2-carboxylate
85006-31-1
- US $1.00-1.00 / KG
- 99%
- Shaanxi Dideu Medichem Co. Ltd





