2-Acetyl-3,5(6)-dimethylpyrazine - ≥98%, mixture of isomers , CAS No.54300-08-2

CAS: 54300-08-2 Cat. No.: A135006 Molecular Weight: 150.18 EC Number: 259-076-0

GRADE & PURITY ≥98%, mixture of isomers

Synonyms

2-Acetyl-3,5-dimethylpyrazine | AKOS015900064 | Hexane, p.a., 95% | 1-(3,5-Dimethyl-2-pyrazinyl)ethanone | 1-(3,5-Dimethyl-2-pyrazinyl)-Ethanone | Pyrazine, 2-acetyl-3,5-dimethyl | 1-(3,5-dimethylpyrazin-2-yl)ethan-1-one | CHEBI:173403 | MFCD00055023 | SY

Storage

Argon charged,Room temperature

Shipped In

Normal

Specifications

Synonyms

2-Acetyl-3, 5-dimethylpyrazine | AKOS015900064 | Hexane, p.a., 95% | 1-(3, 5-Dimethyl-2-pyrazinyl)ethanone | 1-(3, 5-Dimethyl-2-pyrazinyl)-Ethanone | Pyrazine, 2-acetyl-3, 5-dimethyl | 1-(3, 5-dimethylpyrazin-2-yl)ethan-1-one | CHEBI:173403 | MFCD00055023 | SY

Specifications & Purity

≥98%, mixture of isomers

Storage

Argon charged, Room temperature

Shipped In

Normal

Purity

≥98%

Names and Identifiers

• Pubchem Sid: 488187368
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488187368
• Canonical Smiles: CC1=CN=C(C(=N1)C)C(=O)C
• IUPAC Name: 1-(3,5-dimethylpyrazin-2-yl)ethanone
• InChIKey: UCGOSAWBWFUKDT-UHFFFAOYSA-N
• INCHI: 1S/C8H10N2O/c1-5-4-9-8(7(3)11)6(2)10-5/h4H,1-3H3
• Isomeric SMILES: CC1=CN=C(C(=N1)C)C(=O)C
• WGK Germany: 3
• Molecular Weight: 150.18
• Reaxy-Rn: 638008
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=638008&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic oxygen compounds
    • Class Organooxygen compounds
      • Subclass Carbonyl compounds
        • Level5 Ketones
          • Level6 Aryl ketones
            • Level7 Aryl alkyl ketones

• Kingdom: Organic compounds
• Superclass: Organic oxygen compounds
• Class: Organooxygen compounds
• Subclass: Carbonyl compounds
• Intermediate Tree Nodes: Ketones - Aryl ketones
• Direct Parent: Aryl alkyl ketones
• Alternative Parents: Pyrazines Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives
• Molecular Framework: Aromatic heteromonocyclic compounds
• Substituents: Aryl alkyl ketone - Pyrazine - Heteroaromatic compound - Azacycle - Organoheterocyclic compound - Organic nitrogen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound
• Description: This compound belongs to the class of organic compounds known as aryl alkyl ketones. These are ketones have the generic structure RC(=O)R', where R = aryl group and R'=alkyl group.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Sensitivity: Air Sensitive
• Refractive Index: 1.52
• Flash Point(°F): 195.8 °F
• Flash Point(°C): 91 °C
• Boil Point(°C): 70 °C/7 mmHg
• Molecular Weight: 150.180 g/mol
• XLogP3: 0.600
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 150.079 Da
• Monoisotopic Mass: 150.079 Da
• Topological Polar Surface Area: 42.900 Ų
• Heavy Atom Count: 11
• Formal Charge: 0
• Complexity: 158.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

References

1. Jiawei Du, Yang Zhang, Zhenzhen Ning, Sha Jiang, Jiahuan Liu, Xingting Ni, Qiang Li, Qiang Yang.  (2025)  Comparative Analysis of Pyrazine Compounds in Soy Sauce Aroma Baijiu from Different Regions and Their Impact on Flavor Profiles.  JOURNAL OF FOOD COMPOSITION AND ANALYSIS,      [PMID:] [10.1016/j.jfca.2025.108447]