765-70-8 Usage
Description
Methylcyclopentenolone has a sweet flavor somewhat similar to
licorice.
Chemical Properties
Different sources of media describe the Chemical Properties of 765-70-8 differently. You can refer to the following data:
1. Methylcyclopentenolone 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
2. WHITE TO OFF-WHITE POWDER
Occurrence
Reported 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
Preparation
Sublimes and distills at atmospheric pressure with decomposition.
Taste threshold values
Taste characteristics at 5 ppm: sweet, maple, bready, caramellic with nutty nuances.
General Description
3-Methyl-1,2-cyclopentanedione is present in coffee and is capable of scavenging peroxynitrite. It also has anti-inflammatory effects.
Check Digit Verification of cas no
The CAS Registry Mumber 765-70-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,6 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 765-70:
(5*7)+(4*6)+(3*5)+(2*7)+(1*0)=88
88 % 10 = 8
So 765-70-8 is a valid CAS Registry Number.
InChI:InChI=1/C6H8O2/c1-4-2-3-5(7)6(4)8/h4H,2-3H2,1H3/t4-/m1/s1
765-70-8Relevant articles and documents
1H-pyrrole-2,4-dicarbonyl-derivatives and their use as flavoring agents
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, (2015/03/03)
The present invention primarily relates to 1H-pyrrole-2,4-dicarbonyl-derivatives of Formula (I) wherein R1, R2, R3, Z. Z' and J are as defined in the description, to mixtures thereof and to the use thereof as flavoring agents. The compounds in accordance with the present invention are suitable for producing, imparting, or intensifying an umami flavor. The invention further relates to flavoring mixtures, compositions for oral consumption as well as ready-to-eat, ready-to-use and semifinished products, comprising an effective amount of the compound of Formula (I) or of a mixture of compounds of Formula (I) and to specific methods for producing, imparting, modifying and/or intensifying specific flavor impressions.
Aerobic oxidation of cyclopentane-1,2-diols to cyclopentane-1,2-diones on Pt/C catalyst
Reile, Indrek,Paju, Anne,Eek, Margus,Pehk, T?nis,Lopp, Margus
, p. 347 - 350 (2008/09/17)
A new method for the aerobic oxidation of cyclopentane-1,2-diols to corresponding 1,2-diones using heterogeneous Pt/C catalyst in the presence of LiOH is described. Different functional groups tolerate the oxidation conditions. Yields of 1,2-diones up to 76% were achieved. Georg Thieme Verlag Stuttgart.
