1-Ethylnaphthalene

Modify Date: 2026-07-02 17:48:11

1-Ethylnaphthalene Structure
1-Ethylnaphthalene structure
Common Name 1-Ethylnaphthalene
CAS Number 1127-76-0 Molecular Weight 156.224
Density 1.0±0.1 g/cm3 Boiling Point 259.1±3.0 °C at 760 mmHg
Molecular Formula C12H12 Melting Point −15-−14 °C(lit.)
MSDS N/A Flash Point 111.7±0.0 °C

 Names

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

Name 1-Ethylnaphthalene
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 1.0±0.1 g/cm3
Boiling Point 259.1±3.0 °C at 760 mmHg
Melting Point −15-−14 °C(lit.)
Molecular Formula C12H12
Molecular Weight 156.224
Flash Point 111.7±0.0 °C
Exact Mass 156.093903
LogP 4.44
Vapour Pressure 0.0±0.2 mmHg at 25°C
Index of Refraction 1.602
InChIKey ZMXIYERNXPIYFR-UHFFFAOYSA-N
SMILES CCc1cccc2ccccc12

 MSDS

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

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QJ6950000
CHEMICAL NAME :
Naphthalene, 1-ethyl-
CAS REGISTRY NUMBER :
1127-76-0
LAST UPDATED :
199710
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C12-H12
MOLECULAR WEIGHT :
156.24
WISWESSER LINE NOTATION :
L66J B2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
28ZRAQ "Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960 Volume(issue)/page/year: -,55,1960 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2168 No. of Facilities: 13 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 279 (estimated)

 Safety Information

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

Hazard Codes Xi
Safety Phrases S23-S24/25
WGK Germany 3
RTECS QJ6950000
HS Code 2902909090

 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 2902909090
Summary 2902909090 other aromatic hydrocarbons。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-Ethylnaphthalene
ethylnaphthalene
α-Ethylnaphthalene
MFCD00004049
EINECS 214-432-4

 1-Ethylnaphthalene | 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-Ethylnaphthalene?
A: Molecular formula of 1-Ethylnaphthalene is C12H12.
Q: What is the melting point of 1-Ethylnaphthalene?
A: Melting point of 1-Ethylnaphthalene is −15-−14 °C(lit.).
Q: What is the LogP of 1-Ethylnaphthalene?
A: LogP of 1-Ethylnaphthalene is 4.44.
Q: What English synonyms does 1-Ethylnaphthalene have?
A: English synonyms of 1-Ethylnaphthalene: 1-Ethylnaphthalene, ethylnaphthalene, α-Ethylnaphthalene, MFCD00004049, EINECS 214-432-4.
Q: What is the English name of 1-Ethylnaphthalene?
A: The English name of 1-Ethylnaphthalene is 1-Ethylnaphthalene.
Q: What is the safety information for 1-Ethylnaphthalene?
A: Safety information for 1-Ethylnaphthalene: S23-S24/25.
Q: What is the SMILES notation of 1-Ethylnaphthalene?
A: SMILES notation of 1-Ethylnaphthalene is CCc1cccc2ccccc12.
Q: What is the CAS number of 1-Ethylnaphthalene?
A: CAS number of 1-Ethylnaphthalene is 1127-76-0.
Q: What is the InChIKey of 1-Ethylnaphthalene?
A: InChIKey of 1-Ethylnaphthalene is ZMXIYERNXPIYFR-UHFFFAOYSA-N.
Q: What is the boiling point of 1-Ethylnaphthalene?
A: Boiling point of 1-Ethylnaphthalene is 259.1±3.0 °C at 760 mmHg.

 1-Ethylnaphthalenefactory

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.
Henan Tianfu Chemical Co., Ltd.
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