Structural formula
| Business number | 030G |
|---|---|
| Molecular formula | C2H6O6S2 |
| Molecular weight | 190.2 |
| label |
Ethane disulfonic acid, 1,2-ethanedisulfonic acid hydrate, 1,2-Ethanedisulfonic acid dihydrate, aliphatic compounds |
Numbering system
CAS number:110-04-3
MDL number:MFCD00069901
EINECS number:203-732-0
RTECS number:None
BRN number:None
PubChem ID:None
Physical property data
1. Properties: needle-like crystals
2. Solubility: soluble in ethanol and ether.
Toxicological data
None yet
Ecological data
None yet
Molecular structure data
1. Molar refractive index: 32.00
2. Molar volume (cm3/mol): 198.6
3. Isotonic specific volume (90.2K ): 311.5
4. Surface tension (dyne/cm): 99.5
5. Polarizability (10-24cm3): 12.68
Compute chemical data
1. Hydrophobic parameter calculation reference value (XlogP): -2.2
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 6
p>
4. Number of rotatable chemical bonds: 1
5. Number of tautomers:
6. Topological molecular polar surface area (TPSA): 114
p>
7. Number of heavy atoms: 10
8. Surface charge: -2
9. Complexity: 212
10. Isotopic atoms Quantity: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the chemical bond structure Number of stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
It is corrosive and irritating. Skin contact may cause allergic reactions. Operators should wear protective equipment.
Storage method
Synthesis method
1,2-Dichloroethane undergoes a displacement reaction with sodium sulfite to produce ethane disulfonic acid disodium salt. Dissolve the sodium salt in water, pass it through an exchange column equipped with 001×7 type strongly acidic styrene-based cation exchange resin (732#) at a speed of 2.5~3kg/h, and collect the exchange liquid in sections, with PH=3~1 part Containing more than 90% ethane disulfonic acid, it is concentrated under reduced pressure to remove water and becomes syrupy. Dry at 100℃ to get the finished product.
Purpose
Pharmaceutical intermediates. Used in the production of non-narcotic cough medicine Cemifene.
