Toluene diisocyanate manufacturer Knowledge Xanthene -9-carboxylic Acid Xanthene -9-carboxylic Acid

Xanthene -9-carboxylic Acid Xanthene -9-carboxylic Acid

Xanthene-9-carboxylic acid structural formula

Structural formula

Business number 01SQ
Molecular formula C14H10O3
Molecular weight 226.23
label

None

Numbering system

CAS number:82-07-5

MDL number:MFCD00005059

EINECS number:201-394-9

RTECS number:None

BRN number:174414

PubChem number:24902145

Physical property data

1. Character: solid.


2. Density (g/mL,25/4): Unsure


3. Relative vapor density ( g/mL,AIR =1): Unsure


4. Melting point (ºC): 217(decomposition)


5. Boiling point (ºC,Normal pressure): Unsure


6. Boiling point (ºC,5.2kPa): Unsure


7. Refractive index: Uncertain


8. Flashpoint (ºC): Unsure


9. Specific optical rotation (º): Unsure


10. Autoignition point or ignition temperature (ºC): Unsure


11. Vapor pressure (kPa,25ºC): Unsure


12. Saturated vapor pressure (0


11. Not sure Number of atomic stereocenters:0


12. Determine chemical bonds Number of stereocenters:0


13. Not sure Number of stereocenters of chemical bonds:0


14. Covalent Number of key units:1

Properties and stability

None yet

Storage method

Save sealed in a cool, dry place.

Synthesis method

xanthenol, The mixture of sodium cyanide, glacial acetic acid, ethanol and water is heated in a closed reaction tank and slowly raised to 95℃, pressure0.1-0.2MPa,reaction6h, got9-Cyanoxanthene. Then reflux with alkali solution20h, and then acidified with hydrochloric acid to obtain xanthene-9-Carboxylic acid.

Purpose

Intermediate of the anticholinergic drug propantheline bromide.

style=”FONT-SIZE: 9pt; FONT-FAMILY: Arial; mso-font-kerning: 0pt”>9-Cyanoxanthene. Then reflux with alkali solution20h, and then acidified with hydrochloric acid to obtain xanthene-9-Carboxylic acid.

Purpose

Intermediate of the anticholinergic drug propantheline bromide.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/24901

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