cyclotene hydrate
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IUPAC name :2-hydroxy-3-methylcyclopent-2-en-1-one
InChI :InChI=1/C6H8O2/c1-4-2-3-5(7)6(4)8/h8H,2-3H2,1H3
InChIKey :CFAKWWQIUFSQFU-UHFFFAOYAU
SMILES :CC1=C(C(=O)CC1)O
cas number :80-71-7
(EINECS) number :201-303-2
beilstein number :2039308
fema number :2700
coe number :758
jecfa number :418
fl. number :07.056
molar refractivity :29.08 ± 0.3 cm3
parachor :243.0 ± 6.0 cm3
index of refraction :1.548 ± 0.02
surface tension :49.8 ± 3.0 dyne/cm
density :1.225 ± 0.06 g/cm3
polarizability :11.52 ± 0.5 10-24cm3
XlogP : 0.40
molecular weight : 112.1265200
formula :C6 H8 O2
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Advanced Biotech :cyclotene hydrate
99% min. natural
Odor:  Licorice, nutty
Inoue :CYCLOTENE
Mane :methyl cyclopentenolone
Penta :methyl cyclopentenoline
monohydrate

organoleptics :
odor type :caramellic
odor strength :high ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in dipropylene glycol.  
caramel maple syrup

properties :
appearence :colorless to pale yellow solid
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
melting point : 104.00 to 108.00 °C. @ 760.00 mm Hg
boiling point : 200.00 °C. @ 760.00 mm Hg
vapor pressure :0.00400 mm/Hg @ 25.00 °C.
flash point :> 200.00  °F.  TCC  ( > 93.33 °C. )
logP (o/w) : 0.30

safety :
most important hazard(s) : Xn - Harmful.
Oral Toxicity(LD50) :
  Oral-Guineapig    1400.00  mg/kg

Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :570.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :710.00 (μg/capita/day)
 
recommendation for cyclotene hydrate usage levels up to :
  0.0500 % in the fragrance concentrate.

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
Chemical Carcinogenesis Research Information System :Search
Toxicology Citations :Search
EPA GENetic TOXicology :Search
Env. Mutagen Info. Center :Search
NLM Developmental and Reproductive Toxicity :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
 
WGK Germany :3
 
 
 
 2-hydroxy-3-methylcyclopent-2-en-1-one
(EINECS) number :201-303-2
RTECS :GY7298000 for 80-71-7
chemidplus :000080717
EPA Substance Registry Services :80-71-7
dtp/nci :84226

references :
 2-hydroxy-3-methylcyclopent-2-en-1-one
fl. number :07.056
jecfa number :418
NIST Chemistry WebBook :718912718
pubchem :149636

Cosmetics :
Cosmetic uses : perfuming agents

other :
CosIng :cosmetic data
VCF-Online: VCF Volatile Compounds in Food
synonyms :
 corylone
2-hydroxy-1-methyl cyclopenten-3-one hydrate
2-hydroxy-3-methyl cyclopent-2-en-1-one hydrate
2-hydroxy-3-methyl cyclopent-2-enone hydrate
2-hydroxy-3-methyl-2-cyclopenten-1-one hydrate
2-hydroxy-3-methylcyclopent-2-en-1-one
 maple lactone hydrate
3-methyl cyclopentan-1,2-dione hydrate
3-methyl cyclopentane-1,2-dione hydrate
 methyl cyclopentenolone hydrate
3-methyl-2-cyclopentene-2-olone hydrate

soluble in :
 alcohol
 water, slightly

insoluble in :
 water

(odor and/or flavor) blends with :
 acetoin
2-acetyl furan
 acetyl propionyl
2-acetyl pyrazine
2-acetyl pyridine
2-acetyl-2-thiazoline
3-acetyl-2,5-dimethyl furan
2-acetyl-3,4,5,6-tetrahydropyridine
2-acetyl-3,5(or 6)-dimethyl pyrazine
 allyl 2-furoate
 ambroxan
isoamyl 3-(2-furan) propionate
para-anisyl acetate
 beeswax absolute
 benzyl disulfide
 benzyl salicylate
 berry furanone
 blood orange oil
 butyl levulinate
2-oxobutyric acid
gamma-butyrolactone
 caramel dione
 caramel furanone
 caramel pentadione
 cassia bark oil
 coffee furanone
 currant bud absolute black
 cyclohexyl acetic acid
beta-damascone
gamma-decalactone
 diacetyl
2,5-diethyl tetrahydrofuran
alpha,alpha-dimethyl anisyl acetone
2,3-dimethyl pyrazine
 ethyl (E)-crotonate
 ethyl 2-hydroxy-2-methyl butyrate
 ethyl 4-pentenoate
 ethyl cyclopentenolone
 ethyl maltol
 ethyl phenyl acetate
 ethyl pyruvate
(E)-ethyl tiglate
 ethyl vanillin
5-ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
5-ethyl-3,4,5,6-tetramethyl cyclohexen-2-one
isoeugenyl acetate
 fenugreek absolute
 fenugreek oleoresin
 fenugreek resinoid
 fir balsam absolute
 floral pyranol
 furfuryl acetone
 furfuryl alcohol
 furfuryl octanoate
 furfuryl valerate
 geranyl crotonate
 heliotropin
 heliotropyl acetone
gamma-heptalactone
3,4-hexane dione
alpha-hexyl cinnamaldehyde
5-hydroxymethyl furfural
 immortelle absolute
 ionones
 levulinic acid
 maltol
 maltyl propionate
 mango furanone
 maple furanone
 melon heptenal
 menthone lactone
 mesitene lactone
3-methyl butyl 2-furyl butyrate
 methyl cyclopentenolone
 methyl dihydrojasmonate
5-methyl furfural
 methyl octine carbonate
 methyl phenyl acetate
4-methyl-2,6-dimethoxyphenol
 mimosa absolute
 musks
beta-naphthyl ethyl ether
 nerolidol
(E,Z)-2,6-nonadien-1-ol
(Z)-6-nonen-1-al
 nutty cyclohexenone
 ocean propanal
gamma-octalactone
 osmanthus absolute
 peanut oxazole
2-pentanoyl furan
3-phenyl propyl alcohol
3-propylidene phthalide
 raspberry ketone
 rose oxides
 rosefuran
 santall
 shoyu furanone
 strawberry furanone
 strawberry furanone acetate
 tetrahydrofurfuryl acetate
 tetrahydrofurfuryl alcohol
2-thiophene thiol
 toffee furanone
 tonka bean absolute
 tonka bean resinoid
2,4,5-trimethyl thiazole
(E,E)-2,4-undecadien-1-al
2,4-undecadien-1-al
gamma-undecalactone
isovaleraldehyde propylene glycol acetal
 vanilla oleoresin
 vanillin
 vanillyl isobutyrate
 verymoss
 violet leaf absolute

(odor and/or flavor) used in :
 allspice
 banana
 bay rum
 blackberry
 butter rum
 butterscotch
 candy cotton candy
 caramel
 cinnamon
 coconut
 coffee
 cranberry
 fenugreek
 fig
 fir
 fir balsam
 gingerbread
 honeysuckle chevrefeuille
 mango
 maple
 melon
 mulberry
 musk
 nut
 papaya
 passion fruit
 peach
 pina colada
 pineapple
 pomegranate
 pumpkin
 sugar brown sugar
 tobacco tabac tabaco
 toffee
 tonka
 vanilla

natural occurrence in :
wood smoke



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