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Product features Chemical properties Uses Production methods
Sulfanilamide structure
Chemical Name:
Molecular Formula:
Formula Weight:
MOL File:

Sulfanilamide Properties

Melting point:
164-166 °C(lit.)
vapor pressure 
0.00001 hPa (70 °C)
refractive index 
1.6490 (estimate)
storage temp. 
pKa 10.65(H2O t = 25.0±0.5 I = 0.2) (Uncertain)
white to faintly beige
5.8-6.1 (5g/l, H2O, 20℃)
Water Solubility 
7.5 g/L at 25 ºC
CAS DataBase Reference
63-74-1(CAS DataBase Reference)
NIST Chemistry Reference
Benzenesulfonamide, 4-amino-(63-74-1)
EPA Substance Registry System
Benzenesulfonamide, 4-amino-(63-74-1)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn
Risk Statements  40
Safety Statements  24/25-36-22
WGK Germany  3
RTECS  WO8400000
HazardClass  8
HS Code  29350090
Hazardous Substances Data 63-74-1(Hazardous Substances Data)
Toxicity LD50 orally in mice: 3.8 g/kg (Marshall)
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Sulfanilamide price More Price(24)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1633007 Sulfanilamide 97% 63-74-1 1g $46.9 2018-11-13 Buy
Sigma-Aldrich 1632004 Sulfanilamide United States Pharmacopeia (USP) Reference Standard 63-74-1 5g $348 2018-11-13 Buy
TCI Chemical S0119 Sulfanilamide >99.0%(HPLC)(T) 63-74-1 25g $17 2018-11-22 Buy
TCI Chemical S0119 Sulfanilamide >99.0%(HPLC)(T) 63-74-1 100g $42 2018-11-22 Buy
Alfa Aesar A13001 Sulfanilamide, 98% 63-74-1 100g $23.8 2018-11-13 Buy

Sulfanilamide Chemical Properties,Uses,Production

Product features

Sulfanilamide is an organic sulfur compound structurally similar to p-aminobenzoic acid (PABA) with antibacterial property. Sulfanilamide competes with PABA for the bacterial enzyme dihydropteroate synthase, thereby preventing the incorporation of PABA into dihydrofolic acid, the immediate precursor of folic acid. This leads to an inhibition of bacterial folic acid synthesis and de novo synthesis of purines and pyrimidines, ultimately resulting in cell growth arrest and cell death.Without it, bacteria cannot replicate.
  1. Mechanism of action: mechanism of action is to interfere with the synthesis of nucleic acids required for pathogenic microorganisms,making bacteria lack of nutrition and stop the growth, development and reproduction, having suppression killing effect on hemolytic streptococcus, staphylococcus and meningococcal.
  2. Pharmacodynamics: Oral easily absorbed from the gastrointestinal tract, widely distributed in the body, can penetrate the blood-brain barrier into the brain tissue, and can penetrate the placental barrier into the fetus. Rapid excretion, mainly excreted in metabolites from kidney.
  3. Clinical application: Mainly used for trauma infection caused by infection hemolytic streptococcus, staphylococcus, and local wound infections.
  4. Uses: Sulfanilamide is lower toxicity in sulfa drugs, can be applied for infants, pregnant women, pregnant women and during menstruation, but not in large doses. Having effects on hemolytic streptococcal infection (erysipelas, puerperal fever, tonsillitis), urinary tract infection (gonorrhea) and so; also the intermediate for synthesis of other sulfa drug (such as sulfa amidine, pyrimidine and sulfamethoxazole sulfa methoxy-triazine, etc. ).

Chemical properties

White granular or crystalline powder, odorless. Slightly bitter taste. Slightly soluble in water, ethanol, methanol, ether and acetone, soluble in boiling water, glycerol, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, insoluble in chloroform, ether, benzene, petroleum ether.


  1. Sulfanilamide is the main raw material for the synthesis of sulfa drugs.
  2. Used as a reagent to determine nitrite, also used in the pharmaceutical industry.
  3. Used as intermediates for the synthesis of other sulfa drugs, even for wound disinfection.
  4. Amino benzene sulfonamide is intermediate of herbicide asulam, as well as intermediate of sulfa medicine.
  5. Veterinary medicine, topical anti-inflammatory drugs, for analysis and detection.
  6. Wide spectrum antibacterial, having antibacterial effects on hemolytic streptococcus, Neisseria meningitidis, Staphylococcus aureus and other Gram-positive and negative bacteria. This product is topical application, it can be partially absorbed from the wound. For trauma infections of hemolytic streptococcus and staphylococcus. It can also be used to quickly stop the bleeding wound.

Production methods

There are several methods for their preparation.
1. Acetyl aniline used as raw material
The acetanilide reacts with chlorosulfonic acid at 40~50 ℃, and then cooled slowly, added to water for acid decomposition, while precipitation, dried and filtered to give acetaminophen chloride and ammoniated, ammoniated temperature is controlled at 40~45 ℃, hydrolysis, acidification.
2. Method of mixed diphenyl urea
Condensation of aniline and urea is single-phenylurea and diphenyl urea (called mixed urea), and then obtained from chlorosulfonated, amination, hydrolysis, acid precipitation. The reaction procedure is as follows.
(1)Condensation condensation of aniline hydrochloride and urea, at a temperature of 101~110 ℃ reaction for 3~4 h, obtaining mixed diphenyl urea.
(2)Chlorosulfonated Chlorine acid is pressed into the sulfonated pot, stirring cooling, when the temperature drops below 10 ℃, uniformly added mixed phenyl urea under stirring, the reaction temperature is gradually increased, the addition is completed, at the 46~50 ℃ insulation and mixing for 2 h, cooled to below 10 ℃, added water for acid decomposition. Controlling that the decomposition temperature does not exceed 15 ℃, after the addition of water continued stirring for 20min, then by precipitation, washed with water, obtaining mixed phenylurea chloride.
(3)Ammoniated 2% aqueous ammonia is put into ammoniated pan, cooled to 25 ℃, stirring and added into a mixing phenyl urea chloride, control the temperature at 40 ℃, insulation and reaction for 3h, obtaining ammoniated liquid.
(4)Hydrolysis and neutralization The amide is heated up to 90 ℃, is added 3% lye, continue to heat 108~112 ℃, hydrolysis for 5 h, and moved in the crystallization pot, added hydrochloric acid to neutralize crystals and the crystals are cooled to 20 ℃, crystallization, filtration, washed with water, dry, products are obtained.


The active metabolite of the antibacterial dye, Sulfamidochrysoidine. Inhibits folic acid synthesis in prokaryotes. Antibacterial.


A type of organic compound with the general formula R.SO2.NH2. Sulfonamides, which are amides of sulfonic acids, are active against bacteria, and some are used in pharmaceuticals (‘sulfa drugs’).

brand name

Acetonal vaginal;Amidrin;Avc cream suppositoty;Avc/dienestrol;Avril;Azol polvo;Azol pomada;Buco pental;Buco regis;Chemiovis;Daromid;Defonamid;Dorsec;Expseptoplix;Faderma;Fricton;Gagaril sulfamida;Gynaedron;Instilin;Jacosulfon;Medeyol;Mentol sedans sulfamidad;Nasopomada;Odamida;Oestro-gyneadron;Otocaina;Otonasal;Otorrilan;Ovuthricinol;Oxidermiol;Paraseptol;Pental forte;Pentalmicina;Polvo sulfamida leti;Polvo sulfamida orrvan;Polvos wilfe;Pomada heridas;Pomada wilfe;Prontablin;Pulvi bacteramide;Pyodental;Pyodron;Quimpeamida;Rhinamide;Rino glucol sulf;Sulfacromo;Sulfonamid spuman;Sulfonamide-spuman-style;Sulfonanilamid;Sulfosellan-salbe;Ung. vemleigh.

World Health Organization (WHO)

Sulfanilamide, a sulfonamide anti-infective agent, was introduced in 1936 for the treatment of bacterial infections. The importance of sulfonamides has subsequently decreased as a result of increasing resistance and their replacement by antibiotics which are generally more active and less toxic. The sulfonamides are known to cause serious adverse effects such as renal toxicity, sometimes fatal exfoliative dermatitis and erythema multiforma and dangerous adverse reactions affecting blood formation such as agranulocytosis and haemolytic or aplastic anaemia. Sulfanilamide is still used in some countries as a pessaries or as vaginal cream.

General Description

White powder. pH of 0.5% aqueous solution: 5.8-6.1.

Air & Water Reactions

May be unstable if exposed for long periods air and light . Slightly water soluble.

Reactivity Profile

Sulfanilamide is an amino acid. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May react with azo and diazo compounds to generate toxic gases.

Fire Hazard

Flash point data for Sulfanilamide are not available but Sulfanilamide is probably combustible.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion, subcutaneous, and intravenous routes. Human teratogenic effects by unspecified route: developmental abnormalities of the blood and lymphatic systems (including the spleen and bone marrow). Experimental reproductive effects. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. Implicated in aplastic anemia. When heated to decomposition it emits very toxic fumes of NOx and SOx.

Sulfanilamide Preparation Products And Raw materials

Raw materials

Preparation Products

Sulfanilamide Suppliers

Global( 329)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1815 55
Hebei Guanlang Biotechnology Co., Ltd.
+86-0311-66562153 whatsapp +8615203118427
+86-0311-66562153 CHINA 406 50
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 CHINA 3203 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20676 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32452 55
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
+86-571-56059825 CHINA 2752 55
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 CHINA 24196 60
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6374 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3623 58
career henan chemical co
+86-371-86658258 CHINA 25796 58

View Lastest Price from Sulfanilamide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-18 Sulfanilamide
US $1.00 / kg 1kg 99% 1000kg career henan chemical co
2018-08-17 Sulfanilamide
US $1.00 / KG 1G 98% 100KG career henan chemical co
2019-04-09 Sulfanilamide
US $100.00 / KG 100g 99.8% 5tons Hebei Jimi Trading Co., Ltd.

Sulfanilamide Spectrum

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