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Cyclotene

Cyclotene

CAS Number: 80-71-7

Molecular Formula: C6H8O2

Naturally OccurringLow Odor ThresholdWoody-Lactonic Aroma CompoundEnhances longevity and compositionDual-Use: Fragrance and flavor applicationsFragrance housing for woody/gourmand accordsTobacco flavor manufacturers & aromatherapy blendsNatural Product Lactones for “brown” note enhancementEU Flavour Directive, REACH, IFRA, GRAS (USA)

About Cyclotene

Cyclotene, also known as Maple Lactone, is a naturally occurring aroma compound with a sweet, maple-syrup-like odor and warm woody base note. It is widely used in both fragrances and flavorings due to its highly diffusive, long-lasting, and lactonic character.

Synonyms

  • 2-hydroxy-1-methylcyclopenten-3-one
  • cyclotene
  • 80-71-7
  • Cyclotene
  • 2-Hydroxy-3-methylcyclopent-2-enone
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Cyclotene Specifications

CAS Number
80-71-7
Molecular Formula
C6H8O2
IUPAC Name
2-hydroxy-3-methylcyclopent-2-en-1-one
Canonical SMILES
CC1=C(C(=O)CC1)O
InChI Key
CFAKWWQIUFSQFU-UHFFFAOYSA-N
InChI
1S/C6H8O2/c1-4-2-3-5(7)6(4)8/h8H,2-3H2,1H3
PubChem CID
6660
EINECS Number
201-303-2
FEMA Number
2700
UNSPSC Code
12352100
HSN No
12352100
Appearance
Clear to pale yellow liquid
Odor
Sweet, caramelized, maple-like, woody
Boiling Point
~216°C
Flash Point
~100°C (Closed Cup)
Density
~1.15 g/cm³
Solubility
Soluble in ethanol and oils; partially soluble in water
GHS Classification
Not classified as hazardous under GHS
Precautionary Statements
P280: Use protective gloves and eye protection P261: Avoid inhalation of vapors P305+P351+P338: In case of contact with eyes, rinse thoroughly P264: Wash hands after handling

Fine Fragrances

Adds warmth and lactonic depth to woody, oriental, and gourmand bases.

Flavor Enhancer

Used in sweet profiles like maple, vanilla, caramel, and brown sugar (under FEMA/FDA limits).

Tobacco and Leather Notes

Common in perfumery compositions requiring burnt, smoky accents.

Cocoa and Nutty Accords

Used in confectionery and flavoring bases for depth and roundness.

Storage

Keep in airtight containers in a dry, cool place

Stacking

2 drums high (for bulk), small bottles in padded cartons

Transport

Palletized, stretch-wrapped, containerizedFlexible Packaging: 1 kg to 200 kg options in HDPE, glass, or fluorinated drums

Flexible Packaging

1 kg to 200 kg options in HDPE, glass, or fluorinated drums

  1. 2-hydroxy-1-methylcyclopenten-3-one
  2. cyclotene
  3. 80-71-7
  4. Cyclotene
  5. 2-Hydroxy-3-methylcyclopent-2-enone

Cyclotene FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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