Product Identification

Product Name

4-((2-Pyridylamino)sulfonyl)aniline

Synonyms

2-Sulfanilamidopyridine
4-[(2-Pyridylamino)sulfonyl]aniline
4-Amino-N-2-pyridinylbenzenesulfonamide
Haptocil
N1-2-Pyridylsulfanilamide
Streptosilpyridine

CAS

144-83-2

Formula

C11H11N3O2S

Molecular Weight

249.29

EINECS

205-642-7

RTECS

DA9625000

RTECS Class

Tumorigen; Drug; Mutagen; Reproductive Effector

Merck

12,9108

Beilstein/Gmelin

222065

Beilstein Reference

5-22-08-00424

Physical and Chemical Properties

Appearance

Odorless or almost odorless white or yellowish-white crystalline powder. Very slightly bitter taste. Aqueous solution is neutral.

Melting Point

188 - 191

Boiling Point

474

Vapor Pressure

4E-9 (25 C)

pKa/pKb

8.54 (pKa)

Partition Coefficient

.03

Heat Of Vaporization

73.7 kJ/mol

Usage

Antibacterial, potentially toxic, used to treat certain skin diseases.

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. If symptoms (such as redness or irritation) develop, immediately transport the victim to a hospital.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

See inhalation.

Inhalation

Symptoms of exposure to this compound include fever, rash, agranulocytosis, deposition of crystals in the urinary tract with consequent hematuria or anuria, nausea, vomiting, cyanosis, sensitization and, rarely, granulocytopenia. Other symptoms include acute transient myopia, conjunctivitis, keratitis, disturbances of the optic nerve and retina, temporary impairment of depth perception, swelling of the eyelids, photophobia, lacrimation, Stevens-Johnson syndrome, Lyell syndrome, amblyopia, central scotoma and optic neuritis, usually with papilledema. It can induce crystalluria.

Skin

See inhalation.

Eyes

See inhalation

Exposure Controls/Personal Protection

Personal Protection

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.

Respirators

Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.

Fire Fighting Measures

Flash Point

240

Fire Fighting

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Stability and Reactivity

Stability

No data.