3-Methyl-1,2-cyclopentanedione

3-Methyl-1,2-cyclopentanedione
  • CAS No.:765-70-8

Important Notice

  1. This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
  2. This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
  3. The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.
Other grades of this product :
3-Methyl-1,2-cyclopentanedione Basic information
Product Name:3-Methyl-1,2-cyclopentanedione
Synonyms:3-Methyl-1,2-cyclopentadione;3-Methylcyclopenta-1,2-dione;3-Methyl-1,2-cyclopentanedione,99%;3-Methyl-1,2-cyclopentanedione, 99% 10GR;3-Methyl-1,2-cyclopentanedione, 99% 50GR;Methylcyclopentane-1,2-;3-Methyl-1,2-cyclopentanedione 99%;2-Cyclopentanedione,3-methyl-1
CAS:765-70-8
MF:C6H8O2
MW:112.13
EINECS:212-154-8
Product Categories:Indolines ,Indoles ,Indazoles
Mol File:765-70-8.mol
3-Methyl-1,2-cyclopentanedione Chemical Properties
Melting point 104-108 °C(lit.)
Boiling point 170.05°C (rough estimate)
density 1.0795 (rough estimate)
refractive index 1.4550 (estimate)
FEMA 2700 | METHYLCYCLOPENTENOLONE
Fp 100 °C
storage temp. Store below +30°C.
solubility soluble in Methanol
form Powder
color White to off-white
Water Solubility soluble
λmax259nm(EtOH)(lit.)
JECFA Number418
BRN 2076520
CAS DataBase Reference765-70-8(CAS DataBase Reference)
NIST Chemistry Reference1,2-Cyclopentanedione, 3-methyl-(765-70-8)
EPA Substance Registry System1,2-Cyclopentanedione, 3-methyl- (765-70-8)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38-43
Safety Statements 22-24/25-36/37-26-36
WGK Germany 3
TSCA Yes
HS Code 29142900
MSDS Information
ProviderLanguage
2-Hydroxy-3-methyl-2-cyclopenten-1-one English
SigmaAldrich English
ACROS English
ALFA English
3-Methyl-1,2-cyclopentanedione Usage And Synthesis
DescriptionMethylcyclopentenolone has a sweet flavor somewhat similar to licorice.
Chemical PropertiesMethylcyclopentenolone has a sweet flavor somewhat similar to licorice. This compound is also reported to have a nutty odor, and a maple-licorice aroma in dilute solution
Chemical PropertiesWHITE TO OFF-WHITE POWDER
OccurrenceReported formed during the dry distillation of wood; found also in the corresponding tar oil; identified in fenugreek. Also reported found in black currants, onion, wheat bread, cured and cooked pork, beer, cocoa, coffee, barley, filbert, almond, sukiyaki, licorice, dried bonito and roasted chicory root
PreparationSublimes and distills at atmospheric pressure with decomposition.
Aroma threshold valuesDetection: 300 ppb
Taste threshold valuesTaste characteristics at 5 ppm: sweet, maple, bready, caramellic with nutty nuances.
Synthesis Reference(s)Synthesis, p. 104, 1975 DOI: 10.1055/s-1975-23673
General Description3-Methyl-1,2-cyclopentanedione is present in coffee and is capable of scavenging peroxynitrite. It also has anti-inflammatory effects.
3-Methyl-1,2-cyclopentanedione Preparation Products And Raw materials

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