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Home/Compounds/Pharmaceutical Intermediate/3-(S)-(+)-(1-Carbamoyl-1,1-diphenylmethyl)pyrroloidine-L-(+)-tartarate
C22H26N2O7
430.5 g/mol
Pharmaceutical Intermediate

Darifenacin intermediate IV

CAS134002-26-9
Category
Pharmaceutical Intermediate
Compound Class
Amine
Primary Use
Pharmaceutical Intermediate

Darifenacin intermediate IV is a chemical compound used as a pharmaceutical intermediate in the manufacturing of darifenacin. It is a salt-like mixture containing a stereochemically marked pyrrolidine derivative and tartaric acid.

Pharmaceutical intermediate for darifenacin

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

ReferenceSame Category

1-propylazetidin-3-ol

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pharmaceutical intermediate

ReferenceSame Category

2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate

CAS134071-44-6

pharmaceutical intermediate

ReferenceSame Category

Diethyl aminomalonate hydrochloride

CAS13433-00-6

pharmaceutical intermediate

ReferenceSame Category

Atorvastatin tert-butyl ester

CAS134395-00-9

pharmaceutical intermediate

Customs Tariff Classification

The international HS code for Darifenacin intermediate IV (CAS 134002-26-9) is 2933.99.

HS code (international, 6-digit)

2933.99

EU CN code (8-digit)

2933 99 80

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

(2R,3R)-2,3-dihydroxybutanedioic acid;2,2-diphenyl-2-[(3S)-pyrrolidin-3-yl]acetamide

InChIKey

HRXFENQYWZZQMX-NUFNRNBZSA-N

SMILES

C1CNC[C@@H]1C(C2=CC=CC=C2)(C3=CC=CC=C3)C(=O)N.[C@@H]([C@H](C(=O)O)O)(C(=O)O)O

Synonyms (16)
  • Darifenacin intermediate IV

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