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General Material Information

Preferred name costus valerolactone
Trivial Name 5-Butyl-5-ethyltetrahydro-2H-pyran-2-one
Short Description costaulon (PFW)
Formula C11 H20 O2
CAS Number 67770-79-0
ECHA Number 267-048-4
FDA UNII EZ42EBM554
Nikkaji Number J317.108F
xLogP3-AA 3.20 (est)
NMR Predictor External link
Synonyms
  • 5-butyl-5-ethyl tetrahydro-2H-pyran-2-one
  • 5-butyl-5-ethyloxan-2-one
  • 5-butyl-5-ethyltetrahydro-2H-pyran-2-one
  • costaulon (PFW)
  • costausol (PFW)
  • ethyl butyl valerolactone
  • 4-ethyl-4-butyl-d-valerolactone
  • 4-ethyl-4-butyl-delta-valerolactone
  • 2H- pyran-2-one, 5-butyl-5-ethyltetrahydro-
  • 2H- pyran-2-one, tetrahydro-5-(n-butyl)-5-ethyl-
  • rootylone
  • 5-butyl-5-ethyloxan-2-one
  • 2H-Pyran-2-one, 5-butyl-5-ethyltetrahydro-
  • Octanoic acid, 4-ethyl-4-(hydroxymethyl)-, δ-lactone
  • Caprylic acid, γ-ethyl-γ-(hydroxymethyl)-, δ-lactone
  • 5-Butyl-5-ethyltetrahydro-2H-pyran-2-one

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Other Information

(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
HMDB (The Human Metabolome Database):Search
Export Tariff Code:3302.90.0010
ChemSpider:View

PhysChem Properties

Material listed in food chemical codex No
Molecular weight 184.27879333496
Boiling Point 125 to 130°C @ 5 mm Hg
Boiling Point 289 to 291°C @ 760 mm Hg
Vapor Pressure 3.89 mmHg @ 25 °C
Flash Point TCC Value 100 °C TCC
logP (o/w) 2.849 est
Solubility
alcohol Yes
carbitol Yes
dipropylene glycol Yes
water, 138.1 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Animal
warm, fatty, animal, costus, rooty, coconut
Odor strength medium , recommend smelling in a 10.00 % solution or less
Substantivity 400 hour(s) at 100.00 %
Luebke, William tgsc, (1985) At 10.00 % in dipropylene glycol. warm fatty animal costus root coconut

Safety Information

Safety information

European information :
Most important hazard(s):
Xi - Irritant
R 36/38 - Irritating to skin and eyes.
S 02 - Keep out of the reach of children.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36/39 - Wear suitable clothing and eye/face protection.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-rat LD50 > 5000 mg/kg
PFW Aroma Chemicals

Dermal Toxicity:
skin-rabbit LD50 > 5000 mg/kg
PFW Aroma Chemicals

Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for costus valerolactone usage levels up to:
4.0000 % in the fragrance concentrate.
Recommendation for costus valerolactone flavor usage levels up to:
not for flavor use.

Safety references

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):67770-79-0
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :106787
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:2
5-butyl-5-ethyloxan-2-one
Chemidplus:0067770790