Home Categories Pharmaceutical intermediates Chromone-2-carboxylic acid
A1235712

Chromone-2-carboxylic acid , 97% , 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
1g RMB34.40 In Stock
5G RMB107.20 In Stock
25G RMB456.00 In Stock
100g RMB1599.20 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

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

RELATED PRODUCTS