Basic information
- Standard SMILES
C=C(C)C(=C)C- InChIKey
SDJHPPZKZZWAKF-UHFFFAOYSA-N- Molecular formula
- C6H10
- Average molar mass
- 82.14 g/mol
- Monoisotopic mass
- 82.07825032
Overview
structure in first source
Names & identifiers
- Preferred name
- 2,3-Dimethyl-1,3-butadiene
- IUPAC
- 2,3-dimethylbuta-1,3-diene
- English name
- 2,3-DIMETHYL-1,3-BUTADIENE
- Molecular formula
- C6H10
- Molecular weight
- 82.14
Names & synonyms
Show more names
Database identifiers
- CAS
513-81-5- PubChem CID
- 10566
- DTXSID
DTXSID2022046- UNII
- 61TUU25HCO
- EC Number
- 208-172-0
- Nikkaji
- J6.282K
Properties
Computed structural properties
- XLogP
- 3.1
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 1
- Heavy atoms
- 6
- Formal charge
- 0
- Complexity
- 66
Experimental & physicochemical properties
Physical Description
Liquid
Liquid; [Merck Index]
Physicochemical properties
- Melting point
- -76 °C · -76 °C (lit.)
- Boiling point
- 68 · 68-69 °C (lit.)
- Density
- 0.726 g/mL · 0.726 g/mL at 25 °C (lit.)
- vapor pressure
- 269 mm · 269 mm Hg ( 37.7 °C)
- refractive index
- 20 · n20/D 1.438(lit.)
- Flash point
- 8 °F · −8 °F
- storage temp.
- 2 · 2-8°C
- form
- Liquid
- color
- Clear colorless
- Water Solubility
- Miscible with chloroform. Immiscible with water.
- Merck
- 14 · 14,3238
- BRN
- 605285 · 605285
- Henry's Law Constant
- 2 · 2.0×10-4 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
- Dielectric constant
- 2.1 · 2.1000000000000001
- InChI
- 1S/C6H10/c1-5(2)6(3)4/h1,3H2,2,4H3
- InChIKey
- SDJHPPZKZZWAKF-UHFFFAOYSA-N
- SMILES
- CC(=C)C(C)=C
- CAS DataBase Reference
- 513 · 513-81-5(CAS DataBase Reference)
- FDA UNII
- 61 TUU25HCO · 61TUU25HCO
- EPA Substance Registry System
- 1 · 1,3-Butadiene, 2,3-dimethyl- (513-81-5)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 2 · GHS02
- Signal word
- Danger
- Hazard statements
- 225 · H225
- Precautionary statements
- 210 · P210
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- F
- Risk Statements
- 11 · 11
- Safety Statements
- 16 · 16-23
- RIDADR
- 3295 · UN 3295 3/PG 2
- WGK Germany
- 3 · 3
- F
- 9 · 9
- TSCA
- TSCA listed
- HazardClass
- 3 · 3
- PackingGroup
- II
- HS Code
- 29012900 · 29012900
- Storage Class
- 3 · 3 - Flammable liquids
- Hazard Classifications
- 2 · Flam. Liq. 2
- Limited Quantities
- 1 L · 1.0 L (0.3 gallon) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
Safety & regulation
GHS classification
GHS Classification
Danger
H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]
P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 45 reports by companies from 2 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
1,3-Butadiene, 2,3-dimethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Butadiene, 2,3-dimethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Safety data
- F
- 9
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 3295 3/PG 2
- hs_code
- 29012900
- risk_code
- 11
- Signal word
- Danger
- Symbol(GHS)
- GHS02
- hazard_code
- F
- safety_code
- 16-23
- hazard_class
- 3
- Storage Class
- 3 - Flammable liquids
- packing_group
- II
- Hazard statements
- H225
- Limited Quantities
- 1.0 L (0.3 gallon) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
- Hazard Classifications
- Flam. Liq. 2
- Precautionary statements
- P210
Chemistry & industry
Uses & manufacturing
General Manufacturing Information
All Other Basic Organic Chemical Manufacturing
1,3-Butadiene, 2,3-dimethyl-: ACTIVE
Applications
Uses2,3-Dimethyl-1,3-butadiene undergoes Diels Alder cycloaddition reaction and it also participates in polymerization reactions. It is also involved in manufacturing of synthetic rubber.
General Description2,3-Dimethyl-1,3-butadiene (DMBD) is a conjugated diene. It undergoes Diels Alder cycloaddition reaction with 2-thio-3-chloroacrylamides under thermal, catalytic and microwave conditions. It undergoes thermal [4+2] cycloaddition reaction with 3-acetyl-, 3-carbamoyl and 3-ethoxycarbonylcoumarins under solvent free conditions. DMBD participates in polymerization reactions in the presence of iron dichloride complexes based catalysts.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Related reactions
Linked notes
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