5-Methylthiophene-2-boronic acid
- CAS No.
- 162607-20-7
- Chemical Name:
- 5-Methylthiophene-2-boronic acid
- Synonyms
- 5-METHYL-2-THIOPHENEBORONIC ACID;AKOS BRN-0271;CHEMBRDG-BB 3200980;TIMTEC-BB SBB004150;RARECHEM AH PB 0219;2-Borono-5-methylthiophene;5-METHYL-2-THIENYLBORIC ACID;5-METHYL-2-THIENYLBORONIC ACID;2-Methylthienyl-5-boronic acid;5-METHYLTHIOPHENE-2-BORONIC ACID
- CBNumber:
- CB2691532
- Molecular Formula:
- C5H7BO2S
- Molecular Weight:
- 141.98
- MDL Number:
- MFCD01318166
- MOL File:
- 162607-20-7.mol
| Product description | Number | Pack Size | Price |
| 5-Methyl-2-thiopheneboronic Acid (contains varying amounts of Anhydride) | M1850 | 1g | $39 |
| 5-Methyl-2-thiopheneboronic Acid (contains varying amounts of Anhydride) | M1850 | 5g | $131 |
| 5-Methylthiophene-2-boronicAcid | M725528 | 50mg | $60 |
| 5-Methylthiophene-2-boronic acid 97% | 003968 | 5g | $66 |
| 5-Methylthiophene-2-boronic acid | 6H60-1-W0 | 5G | $80 |
| More product size | |||
| Melting point | 161.5-166.5 °C(lit.) |
|---|---|
| Boiling point | 302.9±44.0 °C(Predicted) |
| Density | 1.25±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 8.73±0.53(Predicted) |
| color | White to Yellow to Orange |
| BRN | 7019569 |
| InChI | InChI=1S/C5H7BO2S/c1-4-2-3-5(9-4)6(7)8/h2-3,7-8H,1H3 |
| InChIKey | NRIYPIBRPGAWDD-UHFFFAOYSA-N |
| SMILES | B(C1SC(C)=CC=1)(O)O |
| CAS DataBase Reference | 162607-20-7(CAS DataBase Reference) |
| UNSPSC Code | 12352103 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 37/39-26-36-7/9-37 | |||||||||
| WGK Germany | 3 | |||||||||
| Hazard Note | Irritant | |||||||||
| HazardClass | IRRITANT, KEEP COLD | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
5-Methylthiophene-2-boronic acid price More Price(36)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | M1850 | 5-Methyl-2-thiopheneboronic Acid (contains varying amounts of Anhydride) | 162607-20-7 | 1g | $39 | 2025-07-31 | Buy |
| TCI Chemical | M1850 | 5-Methyl-2-thiopheneboronic Acid (contains varying amounts of Anhydride) | 162607-20-7 | 5g | $131 | 2025-07-31 | Buy |
| TRC | M725528 | 5-Methylthiophene-2-boronicAcid | 162607-20-7 | 50mg | $60 | 2021-12-16 | Buy |
| Matrix Scientific | 003968 | 5-Methylthiophene-2-boronic acid 97% | 162607-20-7 | 5g | $66 | 2021-12-16 | Buy |
| SynQuest Laboratories | 6H60-1-W0 | 5-Methylthiophene-2-boronic acid | 162607-20-7 | 5G | $80 | 2021-12-16 | Buy |
5-Methylthiophene-2-boronic acid Chemical Properties,Uses,Production
Chemical Properties
white to light yellow powder
Uses
suzuki reaction
Uses
Reactant for:
- Suzuki-Miyaura cross-coupling reactions
Synthesis
554-14-3
150-46-9
162607-20-7
General procedure for the synthesis of 5-methylthiophene-2-boronic acid from 2-methylthiophene and triethyl borate: 5-methylthiophene-2-boronic acid (4.42 g, 85% yield) was obtained by reacting 2-methylthiophene (3.6 g, 17.3 mmol) with n-butyllithium at -78 °C, followed by the addition of triethyl borate. Next, 5-methylthiophene-2-boronic acid (4.42 g) was reacted with methyl 5-bromo-2-iodobenzoate at 80 °C via Suzuki coupling reaction to synthesize intermediate 1 (7.78 g, 80% yield). Intermediate 1 was subsequently cyclized with CH3MgCl to give Intermediate 2 (3.14 g, 40% yield). Finally, intermediate 2 was reacted with 9-phenylanthracene boronic acid via Suzuki coupling to give compound 1 (3.3 g, 60% yield). The structure of compound 1 was confirmed by 1HNMR and mass spectrometry (MS).
References
[1] Patent: KR2015/96594, 2015, A. Location in patent: Paragraph 0290; 0291; 0292
5-Methylthiophene-2-boronic acid Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20175 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| Wuhan Chemwish Technology Co., Ltd | 027-67849912 | sales@chemwish.com | CHINA | 10821 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49975 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29799 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8826 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12071 | 58 |
| Finetech Industry Limited | +86-27-8746-5837 +8619945049750 | info@finetechnology-ind.com | China | 9629 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52846 | 58 |
View Lastest Price from 5-Methylthiophene-2-boronic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-09-25 | 5-Methylthiophene-2-boronic acid
162607-20-7
|
US $34.00-1.20 / kg | 1kg | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2020-01-09 | 5-Methylthiophene-2-boronic acid
162607-20-7
|
US $2.00 / KG | 1g | 98%min | ask | Career Henan Chemical Co |
-
- 5-Methylthiophene-2-boronic acid
162607-20-7
- US $34.00-1.20 / kg
- 99%
- Henan Fengda Chemical Co., Ltd
-
- 5-Methylthiophene-2-boronic acid
162607-20-7
- US $2.00 / KG
- 98%min
- Career Henan Chemical Co
