1,4-Cyclohexadiene

Modify Date: 2026-07-01 12:00:56

1,4-Cyclohexadiene Structure
1,4-Cyclohexadiene structure
Common Name 1,4-Cyclohexadiene
CAS Number 628-41-1 Molecular Weight 80.128
Density 0.9±0.1 g/cm3 Boiling Point 85.5±0.0 °C at 760 mmHg
Molecular Formula C6H8 Melting Point -49.2 °C
MSDS N/A Flash Point -6.7±0.0 °C

Summary: 1,4-Cyclohexadiene (Cyclohexa-1,4-diene, CAS号:628-41-1), molecular formula C6H8, molecular weight 80.128, is a colorless and transparent liquid. Melting point: -49.2°C, boiling point: 85.5±0.0°C. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name cyclohexa-1,4-diene
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 0.9±0.1 g/cm3
Boiling Point 85.5±0.0 °C at 760 mmHg
Melting Point -49.2 °C
Molecular Formula C6H8
Molecular Weight 80.128
Flash Point -6.7±0.0 °C
Exact Mass 80.062599
LogP 2.30
Vapour Pressure 77.4±0.1 mmHg at 25°C
Index of Refraction 1.490
InChIKey UVJHQYIOXKWHFD-UHFFFAOYSA-N
SMILES C1=CCC=CC1
Storage condition 0-6°C
Stability Stable. Highly flammable. Incompatible with strong oxidizing agents.

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes F:Flammable;T:Toxic;
Risk Phrases R45;R46;R11;R48/20/21/22
Safety Phrases S53-S45-S16
RIDADR UN 3295 3/PG 2
WGK Germany 3
Packaging Group II
Hazard Class 3

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  2

DownStream  0

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

InChI=1/C6H8/c1-2-4-6-5-3-1/h1-2,5-6H,3-4H
Cyclohexa-1,4-diene
MFCD00001535
1,4-Cyclohexanediene
EINECS 211-043-1
1,4-Cyclohexadiene
1,4-cyclohexadiene radical cation
1,4-Dihydrobenzene

 1,4-Cyclohexadiene | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of cyclohexa-1,4-diene?
A: Molecular formula of cyclohexa-1,4-diene is C6H8.
Q: What is the boiling point of cyclohexa-1,4-diene?
A: Boiling point of cyclohexa-1,4-diene is 85.5±0.0 °C at 760 mmHg.
Q: What is the InChIKey of cyclohexa-1,4-diene?
A: InChIKey of cyclohexa-1,4-diene is UVJHQYIOXKWHFD-UHFFFAOYSA-N.
Q: What is the SMILES notation of cyclohexa-1,4-diene?
A: SMILES notation of cyclohexa-1,4-diene is C1=CCC=CC1.
Q: What is the melting point of cyclohexa-1,4-diene?
A: Melting point of cyclohexa-1,4-diene is -49.2 °C.
Q: What are the upstream materials of cyclohexa-1,4-diene?
A: Related upstream materials(CAS) of cyclohexa-1,4-diene: 2235-12-3;1165952-91-9.
Q: What is the CAS number of cyclohexa-1,4-diene?
A: CAS number of cyclohexa-1,4-diene is 628-41-1.
Q: What is the molecular weight of cyclohexa-1,4-diene?
A: Molecular weight of cyclohexa-1,4-diene is 80.128.
Q: What is the English name of cyclohexa-1,4-diene?
A: The English name of cyclohexa-1,4-diene is cyclohexa-1,4-diene.
Q: What is the LogP of cyclohexa-1,4-diene?
A: LogP of cyclohexa-1,4-diene is 2.30.

 1,4-Cyclohexadienefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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