ChemicalBook--->CAS DataBase List--->56995-20-1

56995-20-1

56995-20-1 Structure

56995-20-1 Structure
IdentificationBack Directory
[Name]

Flupirtine
[CAS]

56995-20-1
[Synonyms]

D-9998
Katadolon
FLUPIRTINE
CARBAMIC ACID
Trancopal Dolo
FLUPIRITNE MALEATE
N-Acetylated Flupirtine
Ethyl N-[2-amino-6-[(4-fluorophenyl)methylamino]pyridin-3-yl]carbamate
N-[2-Amino-6-[(p-fluorobenzyl)amino]-3-pyridinyl]carbamic acid ethyl ester
[2-Amino-6-[[(4-fluorophenyl)methyllaminol-3-pyridinyl]carbamic acid ethyl ester
Carbamic acid, [2-amino-6-[[(4-fluorophenyl)methyl]amino]-3-pyridinyl]-, ethyl ester
Carbamic acid, N-[2-amino-6-[[(4-fluorophenyl)methyl]amino]-3-pyridinyl]-, ethyl ester
[EINECS(EC#)]

260-503-8
[Molecular Formula]

C15H17FN4O2
[MDL Number]

MFCD00864265
[MOL File]

56995-20-1.mol
[Molecular Weight]

304.32
Chemical PropertiesBack Directory
[Melting point ]

115-116°
[Boiling point ]

445.15°C (rough estimate)
[density ]

1.350±0.06 g/cm3(Predicted)
[storage temp. ]

Keep in dark place,Inert atmosphere,2-8°C
[solubility ]

Soluble in DMSO
[form ]

Powder
[pka]

12.19±0.70(Predicted)
[Water Solubility ]

1g/L(temperature not stated)
[Major Application]

forensics and toxicology
veterinary
[InChI]

1S/C15H17FN4O2/c1-2-22-15(21)19-12-7-8-13(20-14(12)17)18-9-10-3-5-11(16)6-4-10/h3-8H,2,9H2,1H3,(H,19,21)(H3,17,18,20)
[InChIKey]

JUUFBMODXQKSTD-UHFFFAOYSA-N
[SMILES]

FC1=CC=C(CNC2=NC(N)=C(NC(OCC)=O)C=C2)C=C1
Safety DataBack Directory
[WGK Germany ]

WGK 3
[Storage Class]

13 - Non Combustible Solids
[Toxicity]

LD50 orally in mice, rats: 617, 1660 mg/kg (Jakovlev)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Ethyl chloroformate-->Maleic acid-->4-Fluorobenzylamine-->2-Amino-6-chloro-3-nitropyridine-->Flupirtine maleate
[Preparation Products]

Fluroxypyr
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Flupirtine(56995-20-1).msds
Hazard InformationBack Directory
[Chemical Properties]

Crystallizes from isopropanol, melting point 115-116°C. A 5% ethanol solution is colorless but turns green after 20 hours of exposure to air. Acute toxicity LD50: 617 in mice and 1660 in rats (mg/kg) orally. Flupirtine Hydrochloride: C????H????FN??O??·HCl. Crystallizes from water, melting point 214-215°C. Flupirtine Maleate: C????H????FN??O??·C????H??O??. [75507-68-5]. Obtained as colorless crystals from isopropanol, melting point 175.5-176°C. A mixture of crystals A and B; preferably containing 60%-90% A.
[Uses]

Analgesic.
[Uses]

Therapeutic use of Flupirtine was discontinued due to drug induced liver injury (DILI). Since the mechanism of action is not related to its adverse effects, it is important to focus on chemical modifications.
[Definition]

ChEBI: N-[2-amino-6-[(4-fluorophenyl)methylamino]-3-pyridinyl]carbamic acid ethyl ester is an aminopyridine.
[Clinical Use]

Flupirtine maleate is an analgesic with an unknown mode of action. It is used in single doses of 100 mg orally and 150 mg rectally for the treatment of different pain conditions.
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