Tetralin

HCID 8404CAS 119-64-2

Basic information

Standard SMILES
c1ccc2c(c1)CCCC2
InChIKey
CXWXQJXEFPUFDZ-UHFFFAOYSA-N
Molecular formula
C10H12
Average molar mass
132.2 g/mol
Monoisotopic mass
132.09390038

Overview

Tetrahydronaphthalene appears as a light colored liquid. May be irritating to skin, eyes and mucous membranes.

Names & identifiers

Preferred name
Tetralin
IUPAC
1,2,3,4-tetrahydronaphthalene
English name
1,2,3,4-Tetrahydronaphthalene
Molecular formula
C10H12
Molecular weight
132.2

Names & synonyms

1,2,3,4-TetrahydronaphthaleneTETRALIN119-64-2TetrahydronaphthaleneBenzocyclohexaneTetranapTetralineNaphthalene, 1,2,3,4-tetrahydro-TetralinaNaphthalene 1,2,3,4-tetrahydrideDTXSID1026118delta(sup 5,7,9)-naphthantriene
Show more names
THN1,2,3,4-tetrahydro-naphthalen1,2,3,4-tetrahydronaphthalin
FT6XMI58YQNSC-77451DTXCID306118CHEBI:35008RefChem:188750204-340-2tetraleneNSC 77451

Database identifiers

CAS
119-64-2、68412-24-8
PubChem CID
8404
DTXSID
DTXSID1026118
ChEMBL
CHEMBL1575635
ChEBI
CHEBI:35008
UNII
FT6XMI58YQ
EC Number
204-340-2
Nikkaji
J2.002H

Properties

Computed structural properties

XLogP
3.5
Topological polar surface area
0 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
0
Rotatable bonds
0
Heavy atoms
10

Experimental & physicochemical properties

Chemical Classes · 2 items

Other Classes -> Naphthalenes

Volatile Organic Compound (VOC)

pHACIDITY NEUTRAL
SpringerMaterials Properties13C nuclear magnetic resonance spectrum
LogP · 2 items

3.78

3.49

Odor · 3 items

ODOR RESEMBLING MIXTURE OF BENZENE & MENTHOL

MOLDY, TURPENTINE ODOR

Pungent odor

Density · 5 items

0.974 at 68 °F (liquid (USCG, 1999) - Less dense than water; will float

0.9702 G/ML @ 20 °C/4 °C

MOISTURE CONTENT NONE; RESIDUE ON EVAPORATION NONE; BULK DENSITY 8 LB/GAL

Relative density (water = 1): 0.9702

0.981 @25 °C

Physicochemical properties

Melting point
-35 °C · -35 °C (lit.)
Boiling point
207 °C · 207 °C (lit.)
Density
0.973 g/mL · 0.973 g/mL at 25 °C (lit.)
vapor density
4.55 · 4.55 (vs air)
vapor pressure
0.18 mm · 0.18 mm Hg ( 20 °C)
refractive index
20 · n20/D 1.541(lit.)

Safety & regulation

GHS classification

GHS Classification · 6 items

Warning

H315: Causes skin irritation [Warning Skin corrosion/irritation]

P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, P391, and P501 (click each P-code to see the statement)

This chemical does not meet GHS hazard criteria for 1.5% (11 of 729) of reports.

Danger

H304 (20.3%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]

Hazard information

Regulatory Information · 4 items

Chemical: Naphthalene, 1,2,3,4-tetrahydro-

Naphthalene, 1,2,3,4-tetrahydro- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Naphthalene, 1,2,3,4-tetrahydro- 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)

Status: Active Update: 11-04-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/21076

1,2,3,4-Tetrahydronaphthalene: Does not have an individual approval but may be used under an appropriate group standard

DOT LabelCombustible Liquid
Fire Hazards · 2 items

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Above 77 °C explosive vapour/air mixtures may be formed.

Fire PotentialMODERATE, WHEN EXPOSED TO HEAT OR FLAME; CAN REACT WITH OXIDIZING MATERIALS. SPONTANEOUS HEATING: NO.
Health HazardsLiquid may cause nervous disturbance, green coloration of urine, and skin and eye irritation (USCG, 1999)
Hazards Summary · 1 item

Listed in table of Methemoglobinemia-inducing agents: industrial, environmental, and pharmaceutical; [Sullivan, p. 729]; Tetralin is a skin and mucous membrane irritant. When used in poorly ventilated areas, tetralin may cause central nervous system depression. Ingestion of tetralin has caused green urine and laboratory evidence of liver and kidney injury. [HSDB] A skin, eye, and respiratory tract irritant; Inhalation of high concentrations may cause CNS effects; May cause kidney injury; [ICSC]

Safety & protection

Fire Fighting · 2 items

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

Use water spray, powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

First Aid Measures · 4 items

Fresh air, rest. Refer for medical attention.

Rinse skin with plenty of water or shower. Remove contaminated clothes.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .

First AidINGESTION: induce vomiting; call a doctor; medical treatment should be aimed at conservation of liver and kidney function.
Safe StorageSeparated from strong oxidants. Keep in a well-ventilated room. Well closed.
Exposure Control and Personal Protection2.0 [ppm]
Fire Fighting ProceduresWATER MAY BE INEFFECTIVE ON FIRE. COOL EXPOSED CONTAINERS WITH WATER.

Toxicology

Environmental Fate · 3 items

TERRESTRIAL FATE: If released to soil, adsorption is expected to take place. However, it has been detected in groundwater beneath a municipal landfill(4) and the annual loadings of tetralin in runoff from land in the Canadian Ontario and Great Lakes water basins are estimated to be 1,053 and 2,270 kg/yr, respectively(5). Based on biodegradation half-lives of 4-13 days in aquatic systems(1-3), biodegradation in soil will be important(SRC).

AQUATIC FATE: Based on the estimated Henry's Law constant of 1.7X10-3 atm-cu m/mol at 25 °C(2), volatilization half-lives from a model river (1 m deep flowing 1 m/sec and wind velocity of 3 m/sec) and lake (1 m deep) can be estimated to be 4 hours and 5 days, respectively(1,SRC). An estimated Koc value of 1,800(3) suggests a high adsorption potential; furthermore, tetralin was detected in suspended solids from St. Louis Bay(4). Screening and grab sample tests indicate a biodegradation half-life of 4-13 days in seawater, groundwater, and river water(5-7). Bioconcentration in fish may be important in organisms that cannot metabolize tetralin(8).

ATMOSPHERIC FATE: Based on the experimental vapor pressure of 0.368 mm Hg at 25 °C(1), tetralin is expected to exist almost entirely in the vapor phase in the ambient atmosphere(2). Vapor phase tetralin will degrade rapidly in the ambient atmosphere by reaction with photochemically produced hydroxyl radicals with a half-life of about 11 hours(3,SRC). Vapor phase tetralin will also degrade in the ambient atmosphere at night-time by reaction with nitrate radicals with a half-life of about 3.6 days(4-5,SRC).

Adverse EffectsNeurotoxin - Acute solvent syndrome
Signs and Symptoms · 4 items

Cough. Dizziness. Headache. Nausea. Vomiting. Weakness.

Redness. Pain.

Pain. Redness. Blurred vision.

Abdominal pain. See Inhalation.

Ongoing Test Status · 1 item

The following link will take the user to the National Toxicology Program (NTP) Test Agent Search Results page, which tabulates all of the "Standard Toxicology & Carcinogenesis Studies", "Developmental Studies", and "Genetic Toxicity Studies" performed with this chemical. Clicking on the "Testing Status" link will take the user to the status (i.e., in review, in progress, in preparation, on test, completed, etc.) and results of all the studies that the NTP has done on this chemical. [http://ntp-apps.niehs.nih.gov/ntp_tox/index.cfm?fuseaction=ntpsearch.searchresults&searchterm=119-64-2]

Effluent Concentrations · 2 items

Tetralin was identified at a concn range of 13.3-154.3 ng/L in paper-mill effluents being discharged into the Rainy River(1). Tetralin was qualitatively identified in advanced waste treatment water from Lake Tahoe, CA in October of 1974(2). Tetralin was detected at a concn range of 2-58 ug/mL in 5 incinerator effluent extracts(3). Tetralin was detected 1 km from a Volvo assembly plant in Goteborg, Sweden at a concn of 4.6 ug/cu-m on January 14, 1981; regional Goteburg air contains less than 0.01 ug/cu-m tetralin(4). Also, 30 ug/cu-m tetralin was detected in air nearby a Saab assembly plant in Sweden on January 19, 1981(4). These data suggest tetralin is released from automobile assembly plants in emissions from solvents used during painting processes(4). Tetralin emission rates from well-tuned radiant and maltuned convective kerosene space heaters ranged from 100-240 ng/kJ(5).

Based upon monitoring data of runoff from land, approximately 1,053 and 2,271 kg tetralin/yr are input to the Canadian Lake Ontario and Canadian Great Lakes water basins, respectively(1). Tetralin was detected at a concn of 11 ng/g in wastewater from the petroleum refining industry after dissolved air flotation(2).

ICSC Environmental DataThe substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. It is strongly advised not to let the chemical enter into the environment.

Safety data

wgk
2
tsca
TSCA listed
rtecs
QK3850000
ridadr
UN 3082 9/PG 3
hs_code
2902 90 00
Toxicity
LD50 orally in rats: 2.86 g/kg (Smyth)

Chemistry & industry

Pharmacology

Metabolism/Metabolites · 4 items

(1-(14)C)-TETRALIN IS METABOLIZED IN RABBITS BY HYDROXYLATION OF ALICYCLIC RING TO YIELD CONJUGATES OF AC-ALPHA-TETRALOL (60% OF DOSE), AC-BETA-TETRALOL (20%) & TETRALIN-1,2-DIOL (2.5%), & HYDROXYLATION OF AROMATIC RING ... YIELDING AR-BETA-TETRALOL (5,6,7,8-TETRAHYDRO-2-NAPHTHOL, 0.1%).

YIELDS 2-HYDROXYTETRALYLMERCAPTURIC ACID, 1,2,3,4-TETRAHYDRO-1-NAPHTHOL, 1,2,3,4-TETRAHYDRO-2-NAPHTHOL IN RABBIT. YIELDS 1,2,3,4-TETRAHYDRO-1,2-DIHYDROXYNAPHTHALENE, 5,6,7,8-TETRAHYDRO-2-NAPHTHOL IN RABBIT. /FROM TABLE/

In rabbits, the main urinary metabolite was the glucuronide of alpha-tetralol (52.4%). Other conjugated metabolites were beta-tetralol (25.3%), 4-hydroxy-alpha-tetralone (6.1%), and cis-tetralin-1,2-diol (0.4%). Using rat liver homogenates, it was shown that conversion of tetralin to tetralol requires reduced nicotinamide adenine dinucleotide phosphate and that tetralin hydroperoxide is a probable intermediate. Further study confirmed this possibility and indicated that tetralin hydroxylation proceeds via a radical mechanism similar to that of lipid peroxidation.

Tetralin, a component of fuels, solvents, and varnishes, is metabolized in male Fischer 344 rats to 1-tetralol, 2-tetralol, 2-hydroxyl-1-tetralone, 4-hydroxyl-1-tetralone, 1,2-tetralindiol, and 1,4-tetralindiol.

Absorption, Distribution and Excretion · 3 items

ABSORBED VAPOR IS EXCRETED BY KIDNEYS AS ALPHA- AND BETA-TETRAHYDRONAPHTHOLS ANDTHEIR GLUCURONIDES ... .

RADIOACTIVE TETRALIN, WHEN ADMIN TO RABBIT, WAS EXCRETED IN URINE AS GLUCURONIDEAT 87-99% AND IN FECES AT 0.6-1.8% OF ORIGINAL DOSE. ... WAS ABSORBED BY MUSSEL BUT NOT METABOLIZED; ... UP TO 80% WAS RELEASED IN UNCHANGED FORM WHEN THE ORGANISM WAS TRANSFERRED TO FRESH SEAWATER.

When radioactive tetralin was fed to rabbits, 87-90% of the activity was excreted in the urine in 2 days and 0.5-3.7% on the third day. The feces contained only 0.6-1.8%. No radioactivity was found in the breath, and negligible amounts were retained in the tissues. About 90-99% of the dose was accounted for.

Uses & manufacturing

Uses · 6 items

Used in the solvent, paint, varnish, and rubber industries; tetralin is used in shoe polish and floor wax; [HSDB]

Painting (Solvents) [Category: Paint]

SOLVENT FOR CAMPHOR, SULFUR & IODINE; IN PAINT THINNERS; AS PAINT REMOVER WHEN MIXED WITH DECALIN OR WHITE SPIRIT; AS INSECTICIDE FOR CLOTHES MOTH; AS SUBSTITUTE FOR TURPENTINE & PETROL IN GERMANY.

SOLVENT FOR NAPHTHALENE, FATS, RESINS, OILS, WAXES, USED INSTEAD OF TURPENTINE IN LACQUERS, SHOE POLISHES, FLOOR WAXES; DEGREASING AGENT.

IN PLANT PATHOLOGY, TETRALIN HAS BEEN SUCCESSFUL IN TOTAL DESTRUCTION OF CROWN GALL AND OLIVE KNOT NEOPLASMS.

A COMBINATION OF 31% TETRAHYDRONAPHTHALENE AND 0.03% CUPRIC OLEATE (CUPREX) IS PROMOTED AS A PEDICULICIDE AND MITICIDE, BUT ITS TRUE EFFICACY REMAINS TO BE DETERMINED.

ImpuritiesDECAHYDRONAPHTHALENE AND NAPHTHALENE ARE THE PRINCIPAL IMPURITIES.
U.S. Imports(1983) 3.17X10+7 g
U.S. Production · 3 items

2023: <50,000 lb

(1975) GREATER THAN 9.08X10+5 G

(1972) PROBABLY GREATER THAN 4.54X10+5 G

Methods of Manufacturing · 4 items

BY CATALYTIC HYDROGENATION OF PURIFIED NAPHTHALENE.

... FORMED DURING ACIDIC, CATALYTIC HYDROCRACKING OF PHENANTHRENE.

ISOLATED FROM MIDDLE FRACTION OF COAL OIL.

Hydrogenation of naphthalene in the presence of a catalyst at 150 °C.

Formulations/Preparations · 4 items

"ESSENCE OF TETRALIN" IS COMMERCIAL MIXTURE OF TETRALIN & HEXALIN, PALE YELLOW LIQUID WHICH IS BETTER SOLVENT OF RESINS THAN TETRALIN ALONE ... .

GRADES OR PURITY: 90+%

THE COMMERCIAL PRODUCT TYPICALLY HAS A TETRAHYDRONAPTHALENE CONTENT OF >97 wt%.

Grade: Technical

Applications · 4 items

UsesAs a solvent for fats and oils and as an alternative to turpentine in polishes and paint; insecticide.

Uses1,2,3,4-Tetrahydronaphthalene, is used as an intermediate for organic synthesis, solvent. It is used as a solvent.It is also used for the laboratory synthesis of dry HBr gas.

UsesDegreasing agent. Solvent for naphthalene, fats, resins, oils, waxes, used instead of turpentine in lacquers, shoe polishes, floor waxes.

General DescriptionA light colored liquid. May be irritating to skin, eyes and mucous membranes. Flash point 100-141°F.

Additional notes

DefinitionChEBI: An ortho-fused bicyclic hydrocarbon that is 1,2,3,4-tetrahydro derivative of naphthalene.

Related reactions

152 records

Linked notes

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