Phenol, 2-pentyl

Modify Date: 2026-08-23 10:07:47

Phenol, 2-pentyl Structure
Phenol, 2-pentyl structure
Common Name Phenol, 2-pentyl
CAS Number 136-81-2 Molecular Weight 164.24400
Density 0.964g/cm3 Boiling Point 252.4ºC at 760mmHg
Molecular Formula C11H16O Melting Point N/A
MSDS N/A Flash Point 126.3ºC

Summary: 2-Pentylphenol, also known as 2-Phenylpentanol, CAS number 136-81-2, has a molecular formula of C11H16O and a molecular weight of 164.24400. It is a colorless to pale yellow liquid with a boiling point of 252.4°C and a density of 0.964g/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 2-Pentylphenol
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 0.964g/cm3
Boiling Point 252.4ºC at 760mmHg
Molecular Formula C11H16O
Molecular Weight 164.24400
Flash Point 126.3ºC
Exact Mass 164.12000
PSA 20.23000
LogP 3.12490
Vapour Pressure 0.0122mmHg at 25°C
Index of Refraction 1.518
InChIKey MEEKGULDSDXFCN-UHFFFAOYSA-N
SMILES CCCCCc1ccccc1O

 Toxicological Information

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SM6695000
CHEMICAL NAME :
Phenol, o-pentyl-
CAS REGISTRY NUMBER :
136-81-2
BEILSTEIN REFERENCE NO. :
2437418
LAST UPDATED :
199701
DATA ITEMS CITED :
3
MOLECULAR FORMULA :
C11-H16-O
MOLECULAR WEIGHT :
164.27
WISWESSER LINE NOTATION :
QR B5

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
700 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 53,218,1935 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - T1277 No. of Facilities: 11 (estimated) No. of Industries: 1 No. of Occupations: 5 No. of Employees: 302 (estimated)

 Safety Information

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

HS Code 2907199090

 Precursor & DownStream

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

Precursor  6

DownStream  1

 Customs

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

HS Code 2907199090
Summary 2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

 Synonyms

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

o-Amylphenol
o-pentylphenol
pentylphenol
2-amylphenol
Einecs 205-261-6
Phenol,2-pentyl
2-Pentyl-phenol

 Phenol, 2-pentyl | FAQ

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

Q: What is the boiling point of 2-Pentylphenol?
A: Boiling point of 2-Pentylphenol is 252.4ºC at 760mmHg.
Q: What is the CAS number of 2-Pentylphenol?
A: CAS number of 2-Pentylphenol is 136-81-2.
Q: What is the LogP of 2-Pentylphenol?
A: LogP of 2-Pentylphenol is 3.12490.
Q: What is the molecular formula of 2-Pentylphenol?
A: Molecular formula of 2-Pentylphenol is C11H16O.
Q: What are the upstream materials of 2-Pentylphenol?
A: Related upstream materials(CAS) of 2-Pentylphenol: 5635-98-3;20056-56-8;109-65-9;95-48-7;110-53-2;578-57-4.
Q: What is the polar surface area (PSA) of 2-Pentylphenol?
A: Polar surface area (PSA) of 2-Pentylphenol is 20.23000.
Q: What is the molecular weight of 2-Pentylphenol?
A: Molecular weight of 2-Pentylphenol is 164.24400.
Q: What is the InChIKey of 2-Pentylphenol?
A: InChIKey of 2-Pentylphenol is MEEKGULDSDXFCN-UHFFFAOYSA-N.
Q: What is the Chinese name of 136-81-2?
A: Chinese name of 136-81-2 is 136-81-2.
Q: What is the English name of 2-Pentylphenol?
A: The English name of 2-Pentylphenol is 2-Pentylphenol.

 Phenol, 2-pentylfactory

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

Dayang Chem (Hangzhou) Co., Ltd.
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