Acetylenedicarboxylic acid monopotassium salt
Also known as: 2-Butynedioic acid, potassium salt (1:1), Acetylenedicarboxyli, Monopotassium Acetylenedicarboxylate, Potassium Hydrogen Acetylenedicarboxylate, Potassium but-2-ynedioate, Potassium 3-carboxyprop-2-ynoate, potassium 3-carboxypropiolate, potassium,4-hydroxy-4-oxobut-2-ynoate
Acetylenedicarboxylic acid monopotassium salt (CAS 928-04-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4HKO4 and a molecular weight of 151.139 g/mol. Key properties include a melting point of 133 °C, a boiling point of 362.4ºC at 760 mmHg and a flash point of 187.2ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H310 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 928-04-1
- Jingsj CID
- J-6263-5
- Molecular Formula
- C4HKO4
- Molecular Weight
- 151.139 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 133 °C |
|---|---|
| Boiling Point | 362.4ºC at 760 mmHg |
| Flash Point | 187.2ºC |
| Exact Mass | 150.943909 |
| PSA | 77.43000 |
| Additional Property | slightly soluble (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H310
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H331 — Toxic if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2916190090 |
|---|---|
| Summary | 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Acetylenedicarboxylic acid monopotassium salt?
The CAS number of Acetylenedicarboxylic acid monopotassium salt is 928-04-1.
What are the molecular formula and molecular weight of Acetylenedicarboxylic acid monopotassium salt?
Acetylenedicarboxylic acid monopotassium salt has molecular formula C4HKO4 and molecular weight 151.139 g/mol.
Is Acetylenedicarboxylic acid monopotassium salt hazardous?
Acetylenedicarboxylic acid monopotassium salt has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H310; H315 — Causes skin irritation.
What are the upstream and downstream products of Acetylenedicarboxylic acid monopotassium salt?
For Acetylenedicarboxylic acid monopotassium salt, Downstream Products: Diethyl acetylenedicarboxylate, Succinic acid-2,2,3,3-d4, Bicyclo[2.2.1]hepta-2,5-diene-2,3-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. "Acetylenedicarboxylic acid monopotassium salt (CAS 928-04-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6263-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.