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2-Pentanol

HCID 22386
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Grundinformationen

CAS
26184-62-3
Standard-SMILES
CCCC(C)O
InChIKey
JYVLIDXNZAXMDK-UHFFFAOYSA-N
Summenformel
C5H12O
Durchschnittliche Molmasse
88,15 g/mol
Monoisotopische Masse
88,088815

Überblick

Sec-amyl alcohol appears as a clear colorless liquid with a strong odor. Moderately toxic by ingestion and vapors may irritate skin and eyes. Vapors are heavier than air.

Namen und Bezeichner

Bevorzugter Name
2-Pentanol
IUPAC
pentan-2-ol
Englischer Name
(S)-(+)-2-Pentanol
Summenformel
C5H12O
Molmasse
88.15

Namen und Synonyme

2-PENTANOLPentan-2-ol6032-29-7sec-Amyl alcoholMethylpropylcarbinolsec-Pentyl alcohol2-Pentyl alcohol1-Methyl-1-butanolMethyl propyl carbinol2-HydroxypentanePentanol-2alpha-Methylbutanol
Weitere Namen anzeigen
(S)-2-PENTANOLFEMA 3316(S)-Pentan-2-ol(S)-(-)-2-PENTANOL(+)-2-Pentanol(2S)-2-PentanolS-N-AMYL ALCOHOL(2S)-pentan-2-ol
1-Methylbutanolsec-n-Amyl alcoholIsoamyl alcohol, secondaryFEMA No. 3316DL-2-PentanolDTXSID3052721CHEBI:7751804G7050365

Datenbank-Bezeichner

CAS
26184-62-3、26635-63-2、31087-44-2、50858-14-5、51000-78-3、584-02-1、6032-29-7
PubChem CID
22386
DTXSID
DTXSID3052721
ChEMBL
CHEMBL45065
ChEBI
CHEBI:77518
UNII
04G7050365
EC Number
227-907-6、256-810-1
Nikkaji
J9.802G

Eigenschaften

Berechnete Struktureigenschaften

XLogP
1,2
Polarare Oberfläche (TPSA)
20,2 Ų
H-Brücken-Donoren
1
H-Brücken-Akzeptoren
1
Frei drehbare Bindungen
2
Schwere Atome
6
Formalladung
0
Komplexität
27,1

Experimentelle und physikochemische Eigenschaften

Chemical ClassesFlammable agents - 3rd degree
SolventsSolvents -> Alcohols (<C12)
FragrancesFragrance Ingredient (2-Pentanol) -> IFRA transparency List
LogP · 3 Einträge

1.19

1.25

1.34

Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Density · 4 Einträge

0.82 (NIOSH, 2024) - Less dense than water; will float

Relative density (water = 1): 0.8

0.802-0.808

0.82

Flavoring AgentsEU Flavoring substances
Viscosity5.3 mm²/s at 20 °C
Solubility · 4 Einträge

44.6 mg/mL at 25 °C

Solubility in water, g/100ml at 20 °C: 16.6 (good)

very soluble in water; soluble in alcohol and ether

(in ethanol)

Sicherheit und Regulatorisches

Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.

GHS-Klassifizierung

GHS Classification · 6 Einträge

This chemical does not meet GHS hazard criteria for 0.6% (11 of 1753) of reports.

Warning

H226 (99.3%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P340, P317, P319, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1753 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Warning

Gefahrenhinweise

Regulatory Information · 4 Einträge

Chemical: 2-Pentanol

Regulation (EC) No 1831/2003 (amended)

2-Pentanol: HSNO Approval: HSR001417 Approved with controls

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelFlammable Liquid
Fire Hazards · 2 Einträge

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

Flammable. Above 33 °C explosive vapour/air mixtures may be formed.

Health HazardsExcerpt from NIOSH Pocket Guide for Isoamyl alcohol (secondary):
Hazards Summary · 1 Eintrag

An eye, nose, and throat irritant; [Hawley] An eye and respiratory tract irritant; Narcotic effects; [Merck Index] A skin, eye, nose, and throat irritant; [CAMEO] A skin, eye, nose, and throat irritant; Inhalation of high concentrations can cause CNS depression; [CHEMINFO] A skin and eye irritant; [eChemPortal: ERMA] An irritant; Chronic exposure may cause injury to CNS, kidneys, and lungs; [MSDSonline]

Chemie und Industrie

Pharmakologische Informationen

Cellular LocationsCytoplasm

Verwendung und Herstellung

Uses · 2 Einträge

Used as solvent for paints and lacquers and to make drugs; [Hawley] Used to make catalyst systems and methanol; Also used as a solvent for primers and for extracting 2-hydroxy-4-methylthiobutyric acid; [CHEMINFO]

Painting (Solvents) [Category: Paint]

Use Classification · 4 Einträge

Fragrance Ingredients

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavoring Agents -> JECFA Flavorings Index

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

General Manufacturing Information2-Pentanol: ACTIVE

Anwendungen

Verwenden(S)-(+)-2-Pentanol is a building block used in the synthesis of highly ptent and selective intranasal toll-like receptor 7 agonists for treating asthma.

Vor- und nachgelagerte Produkte

Vorgelagerte Rohstoffe

2-Pentanol, 2-acetate, (2R)-Butanoic acid, (1R)-1-methylbutyl ester(R)-1,2-Epoxypentane(R)-(-)-2-PentanolPentan-2-onDecansure

Zugehörige Reaktionen

127
Reaktionsaufzeichnung erstellen
Reaktionsgleichung von HRID 7475
HRID 7475als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7478
HRID 7478als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7483
HRID 7483als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7484
HRID 7484als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7486
HRID 7486als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7487
HRID 7487als Eduktuspto-grants-2006_08
Reaktionsgleichung von HRID 7488
HRID 7488als Lösungsmitteluspto-grants-2006_08
Reaktionsgleichung von HRID 7490
HRID 7490als Lösungsmitteluspto-grants-2006_08
Seite 1 von 16

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Flash Point · 3 Einträge

95 °F (NIOSH, 2024)

33 °C

(oc) 95 °F

Boiling Point · 4 Einträge

234 °F at 760 mmHg (NIOSH, 2024)

119 °C

118-119 °C

234 °F

Melting Point · 2 Einträge

-73 °C

-50 °C

Physikochemische Eigenschaften

Schmelzpunkt
-50 °C · -50 °C
Siedepunkt
118 · 118-119 °C (lit.)
Dichte
0.81 g/mL · 0.81 g/mL at 25 °C (lit.)
Dampfdichte
3 · 3 (vs air)
Dampfdruck
3.7 · 3.7-41hPa at 20-50℃
Brechungsindex
20 · n20/D 1.406(lit.)
Flammpunkt
93 °F · 93 °F
storage temp.
Flammables area
Aggregatzustand
clear liquid
pka
15.31 · 15.31±0.20(Predicted)
Farbe
Colorless to Almost colorless
Explosionsgrenze
9 % · 9%
Wasserlöslichkeit
soluble
BRN
1718820 · 1718820
InChI
1S/C5H12O/c1-3-4-5(2)6/h5-6H,3-4H2,1-2H3/t5-/m0/s1
InChIKey
JYVLIDXNZAXMDK-YFKPBYRVSA-N
SMILES
CCC[C@H](C)O
LogP
1.2 at · 1.2 at 23℃ and pH6.3-6.6
Oberflächenspannung
63.3 mN/m · 63.3mN/m at 1g/L and 20℃
CAS Datenbank
26184 · 26184-62-3(CAS DataBase Reference)
DOT ID and Guide1105 129
Reactive GroupAlcohols and Polyols
EC ClassificationSymbol: Xn; R: 10-20-37-66; S: (2)-46; Note: C
UN ClassificationUN Hazard Class: 3; UN Pack Group: III
Reactivity AlertsHighly Flammable
Reactivity Profile · 1 Eintrag

Flammable and/or toxic gases are generated by the combination of alcohols, such as SEC-AMYL ALCOHOL, with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides.

Chemical DangersReacts violently with oxidants.

Sicherheit und Schutzausrüstung

Fire Fighting · 2 Einträge

Excerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:

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

First Aid Measures · 4 Einträge

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Seek medical attention if you feel unwell.

Rinse with plenty of water (remove contact lenses if easily possible). Refer for medical attention.

Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

First Aid · 2 Einträge

Excerpt from NIOSH Pocket Guide for Isoamyl alcohol (secondary):

(General first aid procedures)

Safe StorageFireproof. Separated from strong oxidants.
Exposure Control and Personal Protection20.0 [ppm]
Nonfire Spill ResponseExcerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Spillage Disposal · 1 Eintrag

Remove all ignition sources. Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.

Isolation and EvacuationExcerpt from ERG Guide 127 [Flammable Liquids (Water-Miscible)]:
Eye PreventionWear safety goggles or eye protection in combination with breathing protection.
Fire PreventionNO open flames, NO sparks and NO smoking. Above 33 °C use a closed system, ventilation and explosion-proof electrical equipment.
Inhalation RiskA harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20 °C.
Skin PreventionProtective gloves.

Toxikologische Informationen

Target OrgansEyes, skin, respiratory system, central nervous system
Adverse EffectsNeurotoxin - Acute solvent syndrome
Exposure Routes · 2 Einträge

The substance can be absorbed into the body by inhalation and by ingestion.

inhalation, ingestion, skin and/or eye contact

Signs and Symptoms · 5 Einträge

Cough. Sore throat. Headache. Nausea. Dizziness. Drowsiness. Unconsciousness.

Redness.

Redness. Pain. Temporary loss of vision.

Abdominal pain. Burning sensation in the throat and chest. Further see Inhalation.

irritation eyes, skin, nose, throat; headache, dizziness; cough, dyspnea (breathing difficulty), nausea, vomiting, diarrhea; skin cracking; In Animals: narcosis

Sicherheitsdaten

wgk
2
ridadr
UN 1105 3/PG 3
hs_code
29051990
RTECS-Nr.
SA4900000
risk_code
10-36/37/38-66-37-20
hazard_code
Xn,Xi,F
safety_code
46-26-16-24/25
hazard_class
3
packing_group
III
Speicherklasse
3 - Flammable liquids
Hazard Classifications
Acute Tox. 4 InhalationFlam. Liq. 3STOT SE 3
Selbstentzündungstemperatur
657 °F
Vinylbutyrat
Hexansure
Pentan-1-ol
Vinylacetat
Octansäure

Nachgelagerte Produkte

n-C3H7CH(CH3)OOH