3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5-diethyl ester sodium salt

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Names

[ CAS No. ]:
14282-56-5

[ Name ]:
3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5-diethyl ester sodium salt

[Synonym ]:
disodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-dioate
disodium 2,5-dicarbethoxy-3,4-dioxythiophene
Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate)
2,5-dicarbethoxy-3,4-dihydroxythiophene disodium salt
disodium salt of 3,4-dihydroxythiophene-2,5-dicarboxylic acid diethyl ester
MFCD00159536
diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disodium salt

Chemical & Physical Properties

[ Density]:
1.507g/cm3

[ Boiling Point ]:
343.8ºC at 760mmHg

[ Melting Point ]:
320-325ºC(lit.)

[ Molecular Formula ]:
C10H12NaO6S+

[ Molecular Weight ]:
283.25300

[ Flash Point ]:
161.7ºC

[ Exact Mass ]:
283.02500

[ PSA ]:
121.30000

[ LogP ]:
1.51270

[ Vapour Pressure ]:
4.41E-06mmHg at 25°C

[ Index of Refraction ]:
1.616

MSDS

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Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
26-36

[ RIDADR ]:
NONH for all modes of transport

[ HS Code ]:
2934999090

Synthetic Route

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Precursor & DownStream

Precursor

  • Diethyl 2,2'-sulfanediyldiacetate
  • Diethyloxalate

DownStream

  • Diethyl 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylate
  • Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
  • 2,3-Dihydro-thieno[3,4-b]-1,4-dioxin-5,7-dicarboxylic acid
  • 3,4-dimethoxythiophene-2,5-dicarboxylic acid

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%