Caramel - Reagent grade , CAS No.8028-89-5

CAS: 8028-89-5 Cat. No.: C304687 Molecular Weight: 126.15 EC Number: 232-435-9

GRADE & PURITY Reagent Grade

Synonyms

3,5-Dimethyl-1, 2-cyclopentanedione | NCGC00256668-01 | CARAMEL COLOR A | W-108275 | DTXCID8027660 | AS-61756 | EN300-2009849 | AKOS015898994 | SCHEMBL873396 | MFCD00143076 | 2-Hydroxy-3,5-dimethyl-2-cyclopenten-1-one, 9CI | D95710 | 3,5-dimethyl-cyclopen

Storage

Room temperature

Shipped In

Normal

Specifications

Synonyms

3, 5-Dimethyl-1, 2-cyclopentanedione | NCGC00256668-01 | CARAMEL COLOR A | W-108275 | DTXCID8027660 | AS-61756 | EN300-2009849 | AKOS015898994 | SCHEMBL873396 | MFCD00143076 | 2-Hydroxy-3, 5-dimethyl-2-cyclopenten-1-one, 9CI | D95710 | 3, 5-dimethyl-cyclopen

Specifications & Purity

Reagent grade

Storage

Room temperature

Shipped In

Normal

Grade

Reagent Grade

Names and Identifiers

• Pubchem Sid: 488183515
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488183515
• Canonical Smiles: CC1CC(C(=O)C1=O)C
• IUPAC Name: 3,5-dimethylcyclopentane-1,2-dione
• InChIKey: MIDXCONKKJTLDX-UHFFFAOYSA-N
• INCHI: 1S/C7H10O2/c1-4-3-5(2)7(9)6(4)8/h4-5H,3H2,1-2H3
• Isomeric SMILES: CC1CC(C(=O)C1=O)C
• Molecular Weight: 126.15
• Reaxy-Rn: 2205836
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2205836&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic oxygen compounds
    • Class Organooxygen compounds
      • Subclass Carbonyl compounds
        • Level5 Ketones
          • Level6 Cyclic ketones

• Kingdom: Organic compounds
• Superclass: Organic oxygen compounds
• Class: Organooxygen compounds
• Subclass: Carbonyl compounds
• Intermediate Tree Nodes: Ketones
• Direct Parent: Cyclic ketones
• Alternative Parents: Organic oxides Hydrocarbon derivatives
• Molecular Framework: Aliphatic homomonocyclic compounds
• Substituents: Cyclic ketone - Organic oxide - Hydrocarbon derivative - Aliphatic homomonocyclic compound
• Description: This compound belongs to the class of organic compounds known as cyclic ketones. These are organic compounds containing a ketone that is conjugated to a cyclic moiety.
• 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

• Molecular Weight: 126.150 g/mol
• XLogP3: 0.700
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 126.068 Da
• Monoisotopic Mass: 126.068 Da
• Topological Polar Surface Area: 34.100 Ų
• Heavy Atom Count: 9
• Formal Charge: 0
• Complexity: 142.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 2
• 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. Zhen-Wen Zhang, Ao-Jun Qiu, Geng-Jin-Sheng Cheng, Yu Fan, Yu Xiao, Yan-Zhu Liu, Qian-Yong Cao.  (2025)  A novel Eu(III)-based nano-aggregation for ratiometric fluorescence sensing of tetracycline.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.114507]

2. Yanjia Guo, Juan Lu, Wenzhuo Wang, Hanyue Jiang, Guangping Ma, Pengfei Han, Li Tian, Tengying Ma.  (2025)  Polymer donor PM6 assisted solid-state electrochemiluminescence sensor of copper-doped biomass carbon quantum dots for ultrasensitive detection of rhodamine B in chili powder.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.115187]