Acetylenedicarboxylic acid (CAS 142-45-0) — formula C4H2O4, molecular weight 114.06; category organic chemicals.
Acetylenedicarboxylic acid (CAS 142-45-0) is a chemical raw material in the organic chemicals category. Its molecular formula C4H2O4 comprises 4 C, 2 H, 4 O atoms. Its molecular weight is about 114.06. Reported physicochemical data: LogP about 0.1. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 142-45-0 |
|---|---|
| Molecular Formula | C4H2O4 |
| Molecular Weight | 114.06 |
| LogP | 0.1 |
| Applications | 2-Butynedioic acid: ACTIVE |
| Category | Organic Chemicals |
Documented applications: 2-Butynedioic acid: ACTIVE.
Acetylenedicarboxylic acid is a carbon-based organic compound with CAS registry number 142-45-0 and molecular formula C4H2O4 (molecular weight 114.06), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 142-45-0
Its molecular formula C4H2O4 comprises 4 C, 2 H, 4 O atoms.
Also known as: Acetylenedicarboxylic acid · 乙炔二甲酸
Category: organic chemicals
The CAS registry number of Acetylenedicarboxylic acid is 142-45-0.
Molecular formula C4H2O4, molecular weight 114.06.
It is also registered under: Acetylenedicarboxylic acid, 乙炔二甲酸.
Recorded applications: 2-Butynedioic acid: ACTIVE.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Acetylenedicarboxylic acid (CAS 142-45-0), compiled from public chemistry databases.
| CAS Registry Number | 142-45-0 |
|---|---|
| PubChem CID | 371 |
| Molecular formula | C4H2O4 |
| IUPAC name | but-2-ynedioic acid |
| UNII (FDA) | 2D2OJ4KO44 |
| Molecular Weight | 114.06 |
|---|---|
| XLogP3 | 0.1 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 113.99530854 |
| Monoisotopic Mass | 113.99530854 |
| Topological Polar Surface Area | 74.6 |
| Heavy Atom Count | 8 |
acetylenedicarboxylic acid; 142-45-0; 2-butynedioic acid; but-2-ynedioic acid; Butynedioic acid; NSC-1903; NSC-631597; 2D2OJ4KO44; DTXSID3059715; CHEBI:30781; RefChem:468155; DTXCID9034608; 205-536-0; acetylenedicarboxylate; 2-Butyne-1,4-dioic acid; MFCD00004362
| Reported hazard statements | H301 (95.8%), H311 (10.4%), H314 (12.5%), H315 (87.5%), H319 (87.5%), H335 (89.6%) |
|---|
H301 (95.8%): Toxic if swallowed [Danger Acute toxicity, oral]
H311 (10.4%): Toxic in contact with skin [Danger Acute toxicity, dermal]
Acetylenedicarboxylic acid · CAS 142-45-0 · C4H2O4. UNII 2D2OJ4KO44.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 乙炔二甲酸