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Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate)

Also known as: 3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester disodium salt, 3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5-diethyl ester sodium salt, disodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-diolate, disodium 2,5-dicarbethoxy-3,4-dioxythiophene, diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate disodium salt, 2,5-Thiophenedicarboxylic Acid Dicarboxy Diethyl Ester Disodium, 2,5-dicarbethoxy-3,4-dihydroxythiophene disodium salt, MFCD00159536

Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) (CAS 14282-56-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10Na2O6S and a molecular weight of 304.22900 g/mol. Key properties include a melting point of 320-325ºC(lit.), a boiling point of 343.8ºC at 760mmHg, a density of 1.507g/cm3 and a flash point of 161.7ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
14282-56-5
Jingsj CID
J-10675-2
Molecular Formula
C10H10Na2O6S
Molecular Weight
304.22900 g/mol
Category
Pharma Intermediates
Last updated
11/2/2026
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Physicochemical Properties

Melting Point320-325ºC(lit.)
Boiling Point343.8ºC at 760mmHg
Density1.507g/cm3
Flash Point161.7ºC
Exact Mass283.02500
PSA121.30000
LogP1.51270
Vapor Pressure4.41E-06mmHg at 25°C
Refractive Index1.616

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate)?

The CAS number of Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) is 14282-56-5.

What are the molecular formula and molecular weight of Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate)?

Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) has molecular formula C10H10Na2O6S and molecular weight 304.22900 g/mol.

Is Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) hazardous?

Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate)?

For Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate), Upstream Products: Diethyl 2,2'-thiodiacetate, Diethyl oxalate; Downstream Products: Diethyl 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylate, Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate, 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Sodium 2,5-bis(ethoxycarbonyl)thiophene-3,4-bis(olate) (CAS 14282-56-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10675-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.