417491
6-Methylchromone-2-carboxylic acid
98%
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About This Item
Empirical Formula (Hill Notation):
C11H8O4
CAS Number:
Molecular Weight:
204.18
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Product Name
6-Methylchromone-2-carboxylic acid, 98%
InChI
1S/C11H8O4/c1-6-2-3-9-7(4-6)8(12)5-10(15-9)11(13)14/h2-5H,1H3,(H,13,14)
SMILES string
Cc1ccc2OC(=CC(=O)c2c1)C(O)=O
InChI key
RKIDLZFIIVDZNX-UHFFFAOYSA-N
assay
98%
form
solid
mp
267-270 °C (lit.)
functional group
carboxylic acid
ketone
Quality Level
Related Categories
General description
6-Methylchromone-2-carboxylic acid is a chromone derivative. Chromones are cyclic compounds containing nine carbon atoms with sp2 hybridization. They are commonly referred as 1,4-benzapyranes or γ-benzopyrones. Its energy of combustion was measured by an isoperibolic micro-combustion calorimeter. Standard molar enthalpy of formation derived from the energy of combustion, for 6-methylchromone-2-carboxylic acid was reported to be -(656.2 ± 2.2)kJmol-1.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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The standard molar enthalpies of formation of chromone-3-carboxylic acid, 6-methylchromone-2-carboxylic acid, and 6-methyl-4-chromanone determined by micro-combustion calorimetry.
Flores H, et al.
Journal of Thermal Analysis and Calorimetry, 117(1), 433-437 (2014)
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