3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE

Name: 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE
Brand: Jinan Shenghe Chemical Co., Ltd.
SKU: 11070

CAS 1128-08-1C11H18OMW 166.26

3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE (CAS 1128-08-1) — formula C11H18O, molecular weight 166.26.

Specifications

CAS Number1128-08-1

Molecular FormulaC11H18O

Molecular Weight166.26

Boiling Point79 °C (0.19 mm Hg)

LogP2.9

Purchase Profile

What this product is

3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE is a chemical compound with CAS registry number 1128-08-1 and molecular formula C11H18O (molecular weight 166.26).

Identification

CAS number: 1128-08-1

Its molecular formula C11H18O comprises 11 C, 18 H, 1 O atoms.

Also known as: 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE · Dihydrojasmone;2-Pentyl-3-methyl-2-cyclopenten-1-one · Dihydrojasmone(2-Pentyl-3-methyl-2-cyclopenten-1-one)

Frequently Asked Questions

What is the CAS number of 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE?

The CAS registry number of 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE is 1128-08-1.

What is the molecular formula and molecular weight of 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE?

Molecular formula C11H18O, molecular weight 166.26.

What other names is 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE known by?

It is also registered under: 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE, Dihydrojasmone;2-Pentyl-3-methyl-2-cyclopenten-1-one, Dihydrojasmone(2-Pentyl-3-methyl-2-cyclopenten-1-one).

PubChem Public Data

Public-database records for 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE (CAS 1128-08-1), reproduced here for independent cross-checking.

Safety classification and hazard statements

GHS notification summary	21.2% (347 / 1635)
Reported hazard statements	H319 (78.8%)

This chemical does not meet GHS hazard criteria for 21.2% (347 of 1635) of reports.

H319 (78.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Regulatory listings

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Floral No safety concern at current levels of intake when used as a flavouring agent
GHS notification summary	21.2% (347 / 1635)

Physical description and handling notes

Colourless liquid; celery, herbacous, spicy aroma
Soluble in fats; Very slightly soluble in water
Soluble (in ethanol)

Reported physical properties

沸点	79 °C (0.19 mm Hg)
密度	0.911-0.917
折射率	1.676-1.682

How this substance is indexed

CAS Registry Number	1128-08-1
PubChem CID	62378
分子式	C11H18O
分子量	166.14 g/mol
IUPAC 名称	3-methyl-2-pentylcyclopent-2-en-1-one
InChIKey	YCIXWYOBMVNGTB-UHFFFAOYSA-N
UNII（FDA）	Y953R7PP90
ChEBI 编号	CHEBI:143730
FEMA 编号	3763
JECFA 编号	1406

Documented uses

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavoring Agents -> JECFA Flavorings Index
2-Cyclopenten-1-one, 3-methyl-2-pentyl-: ACTIVE

Names this substance appears under

Dihydrojasmone; 1128-08-1; 3-Methyl-2-pentylcyclopent-2-enone; 2-CYCLOPENTEN-1-ONE, 3-METHYL-2-PENTYL-; FEMA No. 3763; 3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one; DTXSID4051584; Y953R7PP90; NSC-71928; RefChem:133852; DTXCID8030136; 214-434-5; 3-methyl-2-pentylcyclopent-2-en-1-one; 2-Pentyl-3-methyl-2-cyclopenten-1-one; Jasmone, dihydro-; Dihydrojasmone (natural)

Computed molecular descriptors

分子量	166.26
XLogP3	2.9
氢键供体数	0
氢键受体数	1
可旋转键数	4
精确质量	166.135765193
单同位素质量	166.135765193
拓扑极性表面积	17.1
重原子数	12
形式电荷	0

Database abstract

Dihydrojasmone(2-Pentyl-3-methyl-2-cyclopenten-1-one) is identified by CAS 1128-08-1, molecular formula C11H18O and molecular weight 166.14 g/mol. UNII Y953R7PP90; ChEBI 143730; InChIKey YCIXWYOBMVNGTB-UHFFFAOYSA-N. 沸点: 79 °C (0.19 mm Hg); 密度: 0.911-0.917; Refractive Index: 1.676-1.682.

Source: PubChem / Wikidata; the batch COA governs where values differ.

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