A7049458
Chromone-2-carboxylicacid , 10mMinDMSO , 4940-39-0
Synonym(s):
4-Oxo-4H-1-Benzopyran-2-carboxylic acid;Chromocarb;Chromone-2-carboxylic acid
CAS NO.:4940-39-0
Empirical Formula: C10H6O4
Molecular Weight: 190.15
MDL number: MFCD00006838
EINECS: 225-583-0
Pack Size | Price | Stock | Quantity |
1ml | RMB159.20 | In Stock |
|
others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
Melting point: | 260 °C (dec.)(lit.) |
Boiling point: | 285.64°C (rough estimate) |
Density | 1.3366 (rough estimate) |
refractive index | 1.5280 (estimate) |
storage temp. | Sealed in dry,Room Temperature |
solubility | alcohol: soluble |
pka | 2.28±0.20(Predicted) |
form | Powder |
color | White to beige |
Water Solubility | sparingly soluble |
Merck | 14,2237 |
BRN | 146442 |
CAS DataBase Reference | 4940-39-0(CAS DataBase Reference) |
Description and Uses
Chromone-2-carboxylic acid is used in the cyclic form 3?-oxopyrazolidino[4?,5??2, 3]-chroman-4-one, gives the azide of chromone-2-carboxylic acid, the curtius rearrangement of which is used to synthesize a number of 2-acylaminochromones and it is an orally active antiallergic agent.
Safety
Symbol(GHS) | GHS07 |
Signal word | Warning |
Hazard statements | H315-H319-H335 |
Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-36-37/39 |
WGK Germany | 3 |
RTECS | DJ2476000 |
Hazard Note | Irritant |
HS Code | 29329990 |
Toxicity | LD50 intraperitoneal in mouse: 585mg/kg |