Pyrrolidine, 2-[2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, [R-(R*,R*)]-

Pyrrolidine, 2-[2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, [R-(R,R)]- - Names and Identifiers

Name	clemastine fumarate
Synonyms	CLEMASTINE CLEMASTINUM CLEMASTINE FUMARATE clemastine fumarate CLEMASTINE FUMARATE SALT clemastine hydrogen fumarate 2-{2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine (2R)-2-{2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine Pyrrolidine, 2-2-(1R)-1-(4-chlorophenyl)-1-phenylethoxyethyl-1-methyl-, (2R)- (2R)-2-[2-[(1R)-1-(4-CHLOROPHENYLETHOXY)]ETHYL]-1-METHYL-2-PYRROLIDINE FUMARATE Pyrrolidine, 2-[2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, [R-(R,R)]- [2R,(+)]-2-[2-[[(R)-1-(p-Chlorophenyl)-1-phenylethyl]oxy]ethyl]-1-methylpyrrolidine Pyrrolidine, 2-[2-[(p-chloro-α-methyl-α-phenylbenzyl)oxy]ethyl]-1-methyl-, (+)- (8CI) (+)-(2R)-2-[2-[[(R)-p-Chloro-alpha-methyl-alpha-phenylbenzyl]oxy]ethyl]-1-methylpyrrolidine (2R)-2-{2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine (2E)-but-2-enedioate
CAS	14976-57-9 15686-51-8
EINECS	239-055-2
InChI	InChI=1/C21H26ClNO.C4H4O4/c1-21(17-7-4-3-5-8-17,18-10-12-19(22)13-11-18)24-16-14-20-9-6-15-23(20)2;5-3(6)1-2-4(7)8/h3-5,7-8,10-13,20H,6,9,14-16H2,1-2H3;1-2H,(H,5,6)(H,7,8)/b;2-1+/t20-,21-;/m1./s1

Pyrrolidine, 2-[2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, [R-(R,R)]- - Physico-chemical Properties

Molecular Formula	C21H26ClNO
Molar Mass	343.89
Density	1.097±0.06 g/cm3(Predicted)
Melting Point	61 ℃
Boling Point	bp0.02 154°
Specific Rotation(α)	D20 +33.6° (ethanol)
Flash Point	211°C
Vapor Presure	1.94E-07mmHg at 25°C
Appearance	White or nearly white crystalline powder
pKa	10.23±0.40(Predicted)
Storage Condition	2-8℃
Refractive Index	nD22 1.5582
Use	Antihistamines for allergic rhinitis, urticaria, eczema and other allergic skin diseases

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