Paroxetine maleate Property

Melting point:

136-138°C

alpha 

D -87° (c = 5 in ethanol)

Flash point:

9℃

storage temp. 

2-8°C

solubility 

DMSO: ~12 mg/mL

form 

solid

color 

white

Safety

Hazard Codes 

Xn,T,F

Risk Statements 

22-36/37/38-39/23/24/25-23/24/25-11

Safety Statements 

26-36-45-36/37-16-7

RIDADR 

3249

WGK Germany 

3

RTECS 

TM4569300

HazardClass 

6.1(b)

PackingGroup 

III

Toxicity

LD50 in mice (mg/kg): 845 s.c.; 500 orally (Christensen, Squires, 1977)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Paroxetine maleate Chemical Properties,Usage,Production

Uses

Paroxetine maleate is a selective serotonin uptake inhibitor.

Definition

ChEBI: A maleate salt obtained by reaction of paroxetine with one equivalent of maleic acid. Highly potent and selective 5-HT uptake inhibitor that binds with high affinity to the serotonin transporter (Ki = 0.05 nM). Ki values are 1.1, 350 and 1100 nM for inhibi ion of [3H]-5-HT, [3H]-l-NA and [3H]-DA uptake respectively. Displays minimal affinity for alpha1-, alpha2- or beta-adrenoceptors, 5-HT2A, 5-HT1A, D2

General Description

Paroxetine, marketed under trade names such as Paxil^? or Aropax, is an SSRI antidepressant used to treat many conditions in adults from major depression and obsessive-compulsive disorder to several anxiety disorders. Suitable uses for this certified solution standard include as a starting material for calibrators and controls in LC/MS or GC/MS paroxetine testing applications such as urine drug testing, prescription monitoring, clinical toxicology, or forensic analysis.

Biological Activity

Highly potent and selective 5-HT uptake inhibitor that binds with high affinity to the serotonin transporter (K i = 0.05 nM). K i values are 1.1, 350 and 1100 nM for inhibition of [ 3 H]-5-HT, [ 3 H]-l-NA and [ 3 H]-DA uptake respectively. Displays minimal affinity for a 1 -, a 2 - or b-adrenoceptors, 5-HT 2A , 5-HT 1A , D 2 or H 1 receptors at concentrations below 1000 nM, however displays weak affinity for muscarinic ACh receptors (K i = 42 nM). Antidepressant and anxiolytic in vivo .

Biochem/physiol Actions

Paroxetine is a strong cytochrome P450 2D6 isotype (CYP2D6) inhibitor, which reduces the effectiveness of tamoxifen. This phenylpiperidine derivative inhibits clozapine metabolism. Paroxetine is used to treat social phobia, obsessive-compulsive disorder and panic disorder. It is also used to treat the premenstrual dysphoric disorder, post-traumatic stress disorder and chronic headache.

storage

Store at RT