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ChemicalBook--->CAS DataBase List--->339-43-5

339-43-5

339-43-5 Structure

339-43-5 Structure
IdentificationBack Directory
[Name]

carbutamide
[CAS]

339-43-5
[Synonyms]

Emedan
Oranil
U-6987
Bucrol
Burcol
Alentin
Invenol
Nadisan
Bucarban
Bukarban
Diaboral
Glucidoral
CarbutaMid
Butisulfina
carbutamide
AMinophenurobutane
carbutamide USP/EP/BP
1-Butyl-3-sulfanilylurea
UREA,1-BUTYL-3-SULFANILYL-
UREA,1-BUTYL-3-SULPHANILYL
N1-(ButylcarbaMoyl) sulfanilaMide
1-(4-aminophenyl)sulfonyl-3-butyl-urea
1-(4-azanylphenyl)sulfonyl-3-butyl-urea
4-Amino-N-(butylcarbamoyl)benzenesulfonamide
Benzenesulfonamide, 4-amino-N-[(butylamino)carbonyl]-
[EINECS(EC#)]

206-424-4
[Molecular Formula]

C11H17N3O3S
[MDL Number]

MFCD00025344
[MOL File]

339-43-5.mol
[Molecular Weight]

271.34
Chemical PropertiesBack Directory
[Melting point ]

144-145°
[density ]

1.2840 (rough estimate)
[refractive index ]

1.6630 (estimate)
[storage temp. ]

Refrigerator
[solubility ]

DMSO (Slightly), Methanol (Slightly)
[form ]

Solid
[pka]

pKa 5.75(H2O t=25±0.02 I=0.2) (Uncertain)
[color ]

Off-White to Pale Beige
[Water Solubility ]

535.2mg/L(37 ºC)
[EPA Substance Registry System]

Benzenesulfonamide, 4-amino-N-[(butylamino)carbonyl]- (339-43-5)
Hazard InformationBack Directory
[Chemical Properties]

Off-White to Pale Peach Solid
[Uses]

Antidiabetic.
[Originator]

Carbutamide,Servier
[Definition]

ChEBI: Carbutamide is a sulfonamide and a member of benzenes.
[Manufacturing Process]

223 g of the sodium salt of acetylsulfaniamide are stirred with 223 ml of triethylene glycol. 118 g of n-butyl isothiocyanate are added to the resulting homogeneous mixture. The resulting syrup is heated to 85°C for 4 hours. The mixture is then stirred with 1000 ml of chloroform and 1000 ml of water. The chloroform layer is twice shaken with water, each time with 250 ml. The aqueous extracts are combined and rendered weakly alkaline to phenolphthalein by addition of hydrochloric acid. Unreacted acetyl sulfanilamide precipitates and filtered off. The filtrate is acidified to a pH of 6.5 by the addition of HCl. An oily precipitate settles from the reaction solution and is separated therefrom. N-Butyl acetyl sulfanilylthiourea is precipitated from mother liquors obtained thereby by addition of HCl until Congo paper changes its color to blue. 210 g N-butyl acetyl sulfanilylthiourea are dissolved in 1400 ml of acetone while heating. The solution is mixed with 500 ml of water. A solution of 63 g of sodium nitrite in 120 ml of water is added thereto within about 45 minutes while stirring and cooling to 15°-20°C.
A suspension of crystals is obtained. 240 ml of 25% glacial acid are added thereto within 30 minutes. Stirring of the mixture is continued for 6 hours. N-Butyl acetyl sulfanilylurea mixed with sulfur is precipitated and filtered off. The crude reaction product is suspended in 1000 ml of water and is rendered weakly alkaline to phenolphthalein. Undissolved sulfur is filtered off. The filtrate is acidified by the addition of HCl. 250 g of N-butyl acetyl sulfanilylthiourea having a melting point of 186°-189°C are obtained. It is heated with 500 ml of 5 N potassium hydroxide solution to a temperature of 92°C for 2 hours while stirring. The solid reaction product is dissolved by heating with 750 ml of water and is purified by means of activated charcoal. The resulting solution is heated to 60°C and acidified by addition of HCl. 187 g of N-butyl acetyl sulfanilylthiourea melting at 139°-141°C obtained thereby.
[Therapeutic Function]

Oral hypoglycemic
Safety DataBack Directory
[Safety Profile]

A poison by intraperitoneal route. Moderately toxic by ingestion and subcutaneous routes. An experimental teratogen. Other experimental reproductive effects. When heated to decomposition it emits very toxic fumes of NO, and SOx.
[Hazardous Substances Data]

339-43-5(Hazardous Substances Data)
[Toxicity]

LD50 s.c. in mice: 3 g/kg (Haack, Hagedorn)
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