6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
- Product Name
- 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
- CAS No.
- 23747-48-0
- Chemical Name
- 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine
- Synonyms
- FEMA 3306;nutty pyrazine;FEMA NUMBER 3306;5-METHYL-6,7-DIHYDROC;MAPLE LACTONE PYRAZINE;LABOTEST-BB LT00441061;METHYL DIHYDROCYCLOPENTAPYRAZINE;5-Methyl-5H-cyclopenta[b]pyrazine;5-METHYL-2,3-CYCLOPENTENOPYRAZINE;5-METHYL-6,7-DIHYDROCYCLOPENTAPYRAZINE
- CBNumber
- CB3348743
- Molecular Formula
- C8H10N2
- Formula Weight
- 134.18
- MOL File
- 23747-48-0.mol
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine Property
- Melting point:
- 121-123 °C
- Boiling point:
- 96-99 °C20 mm Hg(lit.)
- Density
- 1.055 g/mL at 25 °C(lit.)
- FEMA
- 3306 | 5H-5-METHYL-6,7-DIHYDROCYCLOPENTA(B)PYRAZINE
- refractive index
- n20/D 1.527(lit.)
- Flash point:
- 174 °F
- storage temp.
- Inert atmosphere,Room Temperature
- form
- clear liquid
- pka
- 1.85±0.40(Predicted)
- color
- Colorless to Light yellow to Light orange
- Odor
- nutty, roasted odor
- Odor Type
- earthy
- Water Solubility
- insoluble
- JECFA Number
- 781
- InChIKey
- YZEFQPIMXZVPKP-UHFFFAOYSA-N
- LogP
- 1.33
- NIST Chemistry Reference
- 5H-5-methyl-6,7-dihydrocyclopentapyrazine(23747-48-0)
- EPA Substance Registry System
- 5H-Cyclopentapyrazine, 6,7-dihydro-5-methyl- (23747-48-0)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39
- WGK Germany
- 3
- TSCA
- Yes
- HS Code
- 29339900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- W330604
- Product name
- 5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine
- Purity
- ≥97%, FG
- Packaging
- sample-k
- Price
- $54.6
- Updated
- 2024/03/01
- Product number
- W330604
- Product name
- 5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine
- Purity
- ≥97%, FG
- Packaging
- 100g
- Price
- $312
- Updated
- 2024/03/01
- Product number
- W330604
- Product name
- 5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine
- Purity
- ≥97%, FG
- Packaging
- 1kg
- Price
- $2020
- Updated
- 2024/03/01
- Product number
- W330604
- Product name
- 5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine
- Purity
- ≥97%, FG
- Packaging
- 25g
- Price
- $138
- Updated
- 2023/01/07
- Product number
- M1086
- Product name
- 5H-5-Methyl-6,7-dihydrocyclopentapyrazine
- Purity
- >97.0%(GC)(T)
- Packaging
- 5mL
- Price
- $88
- Updated
- 2024/03/01
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine Chemical Properties,Usage,Production
Description
5H-5-Methyl-6,7-dihydrocyclopenta(-b)pyrazine has an earthy, baked potato, peanut, roasted odor. It may be prepared from condensation of 2-hydroxy-3-methyl-2-cyclopentene-l-one and ethylene diamine; by condensing a cyclopentenolone with alkylenediamines, or alternatively, an aliphatic α-diketone with 1,2-diamino cyclopentane; the resulting product is dehydrogenated in the presence of palladium over activated charcoal or copper chromite.
Chemical Properties
5H-5-Methyl-6,7-dihydrocyclopenta(b)pyrazine has an earthy, peanut, roasted odor
Chemical Properties
clear yellow to yellow-orange to brown liquid
Occurrence
Reported found in peanuts, filberts, asparagus, potato wheat and rye bread, cooked beef, pork, pork liver, beer, cocoa, coffee, green tea, barley, filberts, almond, sesame seed, malt and wort
Uses
5-Methyl-6,7-dihydrocyclopentapyrazine can be used for drug storage packaging and antibacterial composition.
Definition
ChEBI: 6,7-Dihydro-5-methyl-5H-cyclopenta[b]pyrazine is a member of pyrazines.
Preparation
From condensation of 2-hydroxy-3-methyl-2-cyclopentene-1-one and ethylene diamine; by condensing a cyclopentenolone with alkylenediamines, or alternatively, and aliphatic α-diketone with 1,2-diamino cyclopentane; the resulting product is dehydrogenated in the presence of palladium over activated charcoal or copper chromite.
Aroma threshold values
Aroma characteristics at 1.0%: sweet, nutty, roasted, toasted, grainy, coffee and corn with savory, meaty nuances.
Taste threshold values
Taste characteristics at 15 ppm: nut skin, brown, roasted, oily with a cocoa and coffee nuance, musty, nutty, and grainy
General Description
5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine is the major flavor compound of palm sugar. It is also found in coffee and cooked meat.
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine Preparation Products And Raw materials
Raw materials
Preparation Products
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine Suppliers
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View Lastest Price from 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine manufacturers
- Product
- 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine 23747-48-0
- Price
- US $34.00-1.10/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-25
- Product
- 6, 7-Dihydro-5-Methyl-5 (H) -Cyclopentapyrazine 23747-48-0
- Price
- US $5.00-2.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10000kg
- Release date
- 2023-03-22
- Product
- 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine 23747-48-0
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-09-20