Acetylenedicarboxylic acid (CAS No. 142-45-0) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Organic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.
Organic Chemicals
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The CAS number of Acetylenedicarboxylic acid is 142-45-0.
Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.
Main applications include Organic Chemicals.
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Acetylenedicarboxylic acid · CAS 142-45-0 · C4H2O4. UNII 2D2OJ4KO44.
| 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 |
| Formal Charge | 0 |
| 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; 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
CAS 142-45-0; molecular formula C4H2O4; molecular weight — g/mol.
acetylenedicarboxylic acid, 142-45-0, 2-butynedioic acid, but-2-ynedioic acid, Butynedioic acid, NSC-1903.
Hazard statements reported: H301, H311, H314, H315, H319.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
Supplier: Jinan Shenghe Chemical Co., Ltd. · Reply within one business day.