3-Cyclopentene-1-Carboxylic Acid Ethyl Ester - cas 21622-01-5

We are Manufacture & Supplier of Dolasetron Mesylate API+Intermeidates CAS 115956-13-3 USP3.0 with following detail:
Dolasetron Mesylate CAS 115956-13-3
Molecular formula: C19H20N2O3S.H2O
Molecular weight: 438.50
Application: Antiemetic
Dolasetron Mesylate (Specification):
Product Dolasetron Mesylate
Reference standard Specification Of USP 30
Items Specification
Appearance White or whitish powder
Water content：Not more than 4.7%
Residue on ignition Not more than 0.1%
Heavy metals Not more than 10ppm
Related substances Not more than 0.6%
Ethanol：Not more than 0.5%
pH：Between 3.5～5.5
Assay 98.0% to 102.0%
Dolasetron Mesylate is used to prevent nausea and vomiting caused by cancer chemotherapy, anesthesia, or surgery. Dolasetron is in a class of medications called serotonin 5-HT3 receptor antagonists. It works by blocking the vomiting reflex in the brain. (Antiemetic)
Dolasetron intermediate :
3-cyclopentene-1-carboxylic acid cas 7686-77-3
3-Cyclopentene-1-Carboxylic Acid Ethyl Ester cas 21622-01-5
Endo-hexahydro-8-hydroxy-2.6-methano-2H-quinolizin-3(4H)-one cas 115956-07-5
Dolasetron cas 115956-12-2
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