1. Product advantages
High purity, all above 98.5%, no impurities after dissolution
We will test each batch to ensure quality
OEM and private brand services designed for free
Various cap colors available
We can also provide MT1 peptide powder
2. Factory advantages
Professional research team
More than 5 doctors in high-tech R&D laboratories
More than 1000 m2 of factory production line to ensure stable supply
More than 1200 factories to manufacture products and control quality
3. Service advantages
24-hour online service
Track package information and update it for customers
Professional sales team
Accept small order service
Redelivery service if detained by customs

Product Introduction:

Chinese name 2-thiophenecarboxylic acid
English name thiophene-2-carboxylic acid
Chinese alias thiophene-2-carboxylic acid | thiophene-2-carboxylic acid
More English aliases
Physicochemical properties of 2-thiophenecarboxylic acid
Density 1.4 ± 0.1 g/cm3
Boiling point 260.0 ± 0.0 ° C at 760 mmHg
Melting point 125-127 ° C (lit.)
Molecular formula C5H4O2S
Molecular weight 128.149
Flash point 117.8 ± 19.8 ° C
Accurate quality 127.993202
PSA 65.54000
LogP 1.57
Appearance: White to grayish white powder
Steam pressure 0.0 ± 0.5 mmHg at 25 ° C
Refractive index 1.607
Storage conditions
Store in a cool, dry, and well ventilated warehouse. Keep away from sparks and heat sources. Prevent direct sunlight. Packaging sealing. It should be stored separately from acids and edible chemicals, and mixed storage should be avoided. The storage area should be equipped with suitable materials to contain leaks.
Stability
Use and store according to specifications, without decomposition and avoid contact with oxides
Water solubility 80 g/L (20 º C)
Molecular structure
1. Molar refractive index: 37.56
2. Molar volume (cm3/mol): 91.4
3. Isometric volume (90.2K): 252.5
4. Surface tension (dyne/cm): 58.1
5. Polarization rate (10-24cm3): 12.51
Computational Chemistry
1. Reference value for hydrophobic parameter calculation (XlogP): 1.6
2. Number of hydrogen bond donors: 1
3. Number of hydrogen bond receptors: 2
4. Number of rotatable chemical bonds: 1
5. Number of tautomers:
6. Topological molecular polarity surface area (TPSA): 37.3
7. Number of heavy atoms: 8
8. Surface charge: 0
9. Complexity: 103
10. Number of Isotope Atoms: 0
11. Determine the number of atomic structure centers: 0
12. Number of uncertain atomic construction centers: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
More
1. Character: Colorless needle shaped crystal
2. Density (g/cm3, 25/4 ℃): 1.42
3. Relative vapor density (g/cm3, air=1): Undetermined
4. Melting point (º C): 125-127
5. Boiling point (º C, atmospheric pressure): 260
6. Boiling point (º C, 8kPa): Undetermined
7. Refractive index: undetermined
8. Flash point (º C): 259-261
9. Specific rotation (º): Undetermined
10. Self ignition point or ignition temperature (º C): Not determined
11. Vapor pressure (kPa, 25 º C):

Hebei Sankai Chemical Technology Co., Ltd. is a new chemical enterprise integrating the research, manufacturing and supply of chemicals. Located in the beautiful "cattle city" Xingtai, Hebei Sankai Chemical Technology Co., Ltd. is mainly engaged in the research of chemical fertilizer. At the same time, we have made great breakthroughs in food, feed additives, cosmetics, dyes and industrial chemicals. Our company spirit of "integrity management, quality control, customer first" belief, at home and abroad enjoy high reputation.