1,2-butadiene (CAS 590-19-2) — formula C4H6, molecular weight 54.09; category organic chemicals.
1,2-butadiene (CAS 590-19-2) is a chemical raw material in the organic chemicals category. Its molecular formula C4H6 comprises 4 C, 6 H atoms. Its molecular weight is about 54.09. Reported physicochemical data: melting point around -136.2 °C, boiling point around 10.9 °C, LogP about 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 | 590-19-2 |
|---|---|
| Molecular Formula | C4H6 |
| Molecular Weight | 54.09 |
| Melting Point | -136.2 °C |
| Boiling Point | 10.9 °C |
| LogP | 1 |
| Applications | gel inhibitor in olefin polymerization, the primary feedstock for polybutadiene homopolymer, and a small by-product of 1, 3-butadiene production, Occupational exposure may occur where 1, 3-butadiene is produced or used |
| Category | Organic Chemicals |
Documented applications: gel inhibitor in olefin polymerization, the primary feedstock for polybutadiene homopolymer, and a small by-product of 1, 3-butadiene production, Occupational exposure may occur where 1, 3-butadiene is produced or used.
1,2-butadiene is a carbon-based organic compound with CAS registry number 590-19-2 and molecular formula C4H6 (molecular weight 54.09), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 590-19-2
Its molecular formula C4H6 comprises 4 C, 6 H atoms.
Also known as: 1,2-butadiene · 1,2-丁二烯
Category: organic chemicals
The CAS registry number of 1,2-butadiene is 590-19-2.
Molecular formula C4H6, molecular weight 54.09.
It is also registered under: 1,2-butadiene, 1,2-丁二烯.
Recorded applications: gel inhibitor in olefin polymerization, the primary feedstock for polybutadiene homopolymer, and a small by-product of 1, 3-butadiene production, Occupational exposure may occur where 1, 3-butadiene is produced or used.
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 1,2-butadiene (CAS 590-19-2), compiled from public chemistry databases.
| CAS Registry Number | 590-19-2 |
|---|---|
| PubChem CID | 11535 |
| Molecular formula | C4H6 |
| IUPAC name | buta-1,2-diene |
| UNII (FDA) | 2AZI943A8R |
| Molecular Weight | 54.09 |
|---|---|
| XLogP3 | 1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 54.0469501914 |
| Monoisotopic Mass | 54.0469501914 |
| Topological Polar Surface Area | 0 |
| Heavy Atom Count | 4 |
| Boiling Point | 10.9 °C |
|---|---|
| Melting Point | -136.2 °C |
| Density | 0.676 @ 0 °C/4 °C |
| Vapor Density | 1.9 (Air= 1) |
| Vapor Pressure | 1260 mm Hg @ 25 °C |
| Heat of Vaporization | 23.426 kJ/mol @ 25 °C |
| Other Experimental Properties | 2.21 mg/cu m = 1 ppm |
1,2-BUTADIENE; buta-1,2-diene; Allene, methyl-; Methylajoene; HSDB 5705; UNII-2AZI943A8R; 2AZI943A8R; EINECS 209-674-2; CH2=C=CHCH3; 1,2-BUTADIENE [HSDB]; DTXSID5027225; CHEBI:39480; EC 209-674-2; 1Methylallene; Allene, methyl; RefChem:71747
| Reported hazard statements | H220 (89.3%), H224 (10.7%), H280 (100%), H411 (10.7%) |
|---|
H220 (89.3%): Extremely flammable gas [Danger Flammable gases]
H224 (10.7%): Extremely flammable liquid and vapor [Danger Flammable liquids]
1,2-butadiene · CAS 590-19-2 · C4H6. UNII 2AZI943A8R. Boiling Point: 10.9 °C; Melting Point: -136.2 °C; Density: 0.676 @ 0 °C/4 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 1,2-丁二烯