23747-48-0 Usage
Description
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine, also known as 5H-5-Methyl-6,7-dihydrocyclopenta[b]pyrazine, is a major flavor compound found in palm sugar, coffee, and cooked meat. It has an earthy, baked potato, peanut, and roasted odor. 6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine can be synthesized through various methods, including the condensation of 2-hydroxy-3-methyl-2-cyclopentene-l-one and ethylene diamine, or by condensing a cyclopentenolone with alkylenediamines. The resulting product is then dehydrogenated in the presence of palladium over activated charcoal or copper chromite. It is a clear yellow to yellow-orange to brown liquid with aroma characteristics of sweet, nutty, roasted, toasted, grainy, coffee, and corn with savory and meaty nuances.
Uses
1. Flavor Industry:
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine is used as a flavor compound for its earthy, peanut, and roasted odor. It is particularly useful in the flavoring of palm sugar, coffee, and cooked meat products due to its aroma characteristics.
2. Food Industry:
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine is used in the food industry to enhance the taste and aroma of various products, such as peanuts, filberts, asparagus, potato wheat and rye bread, cooked beef, pork, pork liver, beer, cocoa, coffee, green tea, barley, almond, sesame seed, malt, and wort.
3. Drug Storage Packaging:
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine is used in drug storage packaging to provide a protective environment for pharmaceutical products, ensuring their stability and longevity.
4. Antibacterial Composition:
6,7-Dihydro-5-methyl-5(H)-cyclopentapyrazine is also used in the development of antibacterial compositions, contributing to the preservation and safety of various products by inhibiting the growth of harmful bacteria.
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.
Check Digit Verification of cas no
The CAS Registry Mumber 23747-48-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,4 and 7 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23747-48:
(7*2)+(6*3)+(5*7)+(4*4)+(3*7)+(2*4)+(1*8)=120
120 % 10 = 0
So 23747-48-0 is a valid CAS Registry Number.
InChI:InChI=1/C8H10N2/c1-6-2-3-7-8(6)10-5-4-9-7/h4-6H,2-3H2,1H3/t6-/m1/s1
