5-Methylthiophene-2-boronic acid

5-Methylthiophene-2-boronic acid - Names and Identifiers

Name	5-Methylthiophene-2-boronic acid
Synonyms	AKOS BRN-0271 CHEMBRDG-BB 3200980 TIMTEC-BB SBB004150 RARECHEM AH PB 0219 5-Methyl-2-thienylboric acid 5-METHYL-2-THIENYLBORIC ACID 5-METHYL-2-THIENYLBORONIC ACID 5-Methyl-2-thienylboronic acid 5-Methylthiophene-2-boronic acid 5-METHYL-2-THIOPHENEBORONIC ACID 5-methylthiophen-2-ylboronic acid Methylthiophene-2-boronic acid, 5- (5-methylthiophen-2-yl)boronic acid
CAS	162607-20-7
EINECS	672-308-9
InChI	InChI=1/C5H7BO2S/c1-4-2-3-5(9-4)6(7)8/h2-3,7-8H,1H3

5-Methylthiophene-2-boronic acid - Physico-chemical Properties

Molecular Formula	C5H7BO2S
Molar Mass	141.98
Density	1.25±0.1 g/cm3(Predicted)
Melting Point	161.5-166.5°C(lit.)
Boling Point	302.9±44.0 °C(Predicted)
Flash Point	137°C
Vapor Presure	0.000425mmHg at 25°C
Appearance	White to light yellow powder
BRN	7019569
pKa	8.73±0.53(Predicted)
Storage Condition	Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
Refractive Index	1.55
MDL	MFCD01318166

5-Methylthiophene-2-boronic acid - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S7/9 - S37 - Wear suitable gloves.
WGK Germany	3
HS Code	29349990
Hazard Note	Irritant
Hazard Class	IRRITANT, KEEP COLD

5-Methylthiophene-2-boronic acid - Introduction

The chemical formula is C8H9BO3S, which is an organic boron compound. The following is a description of its nature, use, formulation and safety information:

1. Nature:
-Appearance: White crystalline powder
-Solubility: Soluble in water and organic solvents, such as alcohol, ether, etc.
-Melting point: about 130-136 degrees Celsius

2. Use:
-must acid is mainly used as a chemical reagent and catalyst.
-It can be used as an acid catalyst to participate in various organic synthesis reactions, such as the esterification of alcohols.
-Because of its antioxidant properties, it can also be used in food, cosmetics and medicine.

3. Preparation method:
-The synthesis of acid is generally obtained by the reaction of boric acid and 2-methyl -5-thiophenol.
-During the reaction, 2-methyl-5-thiophenol is reacted with boric acid under appropriate reaction conditions to obtain the target product.

4. Safety Information:
-the acid is generally not significantly harmful to human health and the environment under normal conditions of use.
-However, like any chemical substance, it needs to be handled with safety measures to avoid direct contact with skin, eyes or inhalation of its dust.
-It is recommended to wear appropriate protective measures during use, such as goggles, gloves and laboratory clothing.

Last Update：2024-04-09 19:05:47