Methylcyclopentene

Modify Date: 2026-07-09 12:19:43

Methylcyclopentene Structure
Methylcyclopentene structure
Common Name Methylcyclopentene
CAS Number 693-89-0 Molecular Weight 82.144
Density 0.8±0.1 g/cm3 Boiling Point 78.4±7.0 °C at 760 mmHg
Molecular Formula C6H10 Melting Point -142°C
MSDS N/A Flash Point -17.2±0.0 °C

Summary: 1-Methylcyclopentene (Chinese name: 1-甲基环戊烯, CAS number: 693-89-0), molecular formula: C6H10, molecular weight: 82.144, is a transparent, colorless liquid. Melting point: -142°C, boiling point: 78.4±7.0°C, density: 0.8±0.1 g/cm3. 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 1-Methylcyclopentene
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 0.8±0.1 g/cm3
Boiling Point 78.4±7.0 °C at 760 mmHg
Melting Point -142°C
Molecular Formula C6H10
Molecular Weight 82.144
Flash Point -17.2±0.0 °C
Exact Mass 82.078247
LogP 2.92
Vapour Pressure 102.5±0.1 mmHg at 25°C
Index of Refraction 1.460
InChIKey ATQUFXWBVZUTKO-UHFFFAOYSA-N
SMILES CC1=CCCC1
Storage condition Flammables area

 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;Xn:Harmful;
Risk Phrases R11;R65
Safety Phrases S16-S62-S7
RIDADR UN 3295 3/PG 2
WGK Germany 3
Packaging Group II
Hazard Class 3
HS Code 29021990

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2902199090
Summary 2902199090 other cyclanes, cyclenes and cyclotherpenes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

 Synonyms

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

1-Cyclopentene,1-methyl
1-methyl-cyclopentene
1-Methyl-1-cyclopentane
1-methylcylopentene
1-Methylcyclopent-1-ene
EINECS 211-762-0
cyclopentene,1-methyl
Cyc1opentene,l-methyl
Methylcyclopentene
1-Methylcyclopentene
1-METHYL-1-CYCLOPENTENE
MFCD00001397

 Methylcyclopentene | 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 1-Methylcyclopentene?
A: Molecular formula of 1-Methylcyclopentene is C6H10.
Q: What is the CAS number of 1-Methylcyclopentene?
A: CAS number of 1-Methylcyclopentene is 693-89-0.
Q: What is the boiling point of 1-Methylcyclopentene?
A: Boiling point of 1-Methylcyclopentene is 78.4±7.0 °C at 760 mmHg.
Q: What are the storage conditions for 1-Methylcyclopentene?
A: Storage conditions for 1-Methylcyclopentene: Flammables area.
Q: What is the InChIKey of 1-Methylcyclopentene?
A: InChIKey of 1-Methylcyclopentene is ATQUFXWBVZUTKO-UHFFFAOYSA-N.
Q: What is the safety information for 1-Methylcyclopentene?
A: Safety information for 1-Methylcyclopentene: S16-S62-S7.
Q: What is the English name of 1-Methylcyclopentene?
A: The English name of 1-Methylcyclopentene is 1-Methylcyclopentene.
Q: What are the downstream products of 1-Methylcyclopentene?
A: Related downstream products(CAS) of 1-Methylcyclopentene: 106988-87-8;106988-89-0;106988-88-9;106988-84-5;40459-88-9;20461-31-8;108297-40-1;107-87-9;110-54-3;96-37-7.
Q: What is the melting point of 1-Methylcyclopentene?
A: Melting point of 1-Methylcyclopentene is -142°C.
Q: What English synonyms does 1-Methylcyclopentene have?
A: English synonyms of 1-Methylcyclopentene: 1-Cyclopentene,1-methyl, 1-methyl-cyclopentene, 1-Methyl-1-cyclopentane, 1-methylcylopentene, 1-Methylcyclopent-1-ene, EINECS 211-762-0, cyclopentene,1-methyl, Cyc1opentene,l-methyl, Methylcyclopentene, 1-Methylcyclopentene, 1-METHYL-1-CYCLOPENTENE, MFCD00001397.

 Methylcyclopentenefactory

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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