5-AMINOSALICYLIC ACID

PHYSICAL DESCRIPTION: Odorless white to pinkish crystals or purplish-tan powder. Aqueous solutions acidic (pH approximately 4.1 at 0.8 mg/L water). (NTP, 1992)

none

Sensitive to moisture. Water insoluble.

Flash point data for this chemical are not available; however, it is probably combustible. (NTP, 1992)

SYMPTOMS: Symptoms of exposure to this compound include acute intolerance syndrome characterized by cramping, acute abdominal pain and discomfort, and bloody diarrhea. It may also cause headache, rash, gas (flatulence), nausea, flu, tiredness, weakness, malaise, fatigue, cold, sore throat, leg pain, joint pain, dizziness, bloating, back pain, hemorrhoids, itching, rectal pain, constipation, hair loss, peripheral edema, urinary burning, rectal soreness and burning, asthenia and insomnia. Other symptoms include fever, gastrointestinal problems, anorexia, epigastric pain, skin eruptions of various types, agranulocytosis, leukopenia, eosinophilia, lymphocytosis, atypical mononucleosis syndrome, thrombocytopenia and acute hemolytic anemia. Symptoms of exposure to a related compound include pruritus, erythematous macular or bullous eruptions, acidosis, hypokalemia, crystalluria, vomiting, hepatic necrosis, leukocytosis, laryngeal edema, methemoglobinemia and thyroid suppression. Other symptoms include allergic reactions, gastrointestinal irritation and prolonged prothrombin times.

ACUTE/CHRONIC HAZARDS: This compound may be harmful by inhalation, ingestion or skin absorption. It may cause irritation. When heated to decomposition it emits toxic fumes of carbon monoxide, carbon dioxide and nitrogen oxides. (NTP, 1992)

5-AMINOSALICYLIC ACID is incompatible with acids, acid chlorides, acid anhydrides, chloroformates and strong oxidizers. (NTP, 1992)

• Acids, Carboxylic
• Phenols and Cresols
• Amines, Aromatic

No information available.

No information available.

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used. (NTP, 1992)

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces 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.

STORAGE PRECAUTIONS: You should store this chemical under refrigerated temperatures, and protect it from moisture. If possible, it would be prudent to store this compound under inert atmosphere. (NTP, 1992)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, 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. (NTP, 1992)

No information available.

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. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

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.

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; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

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. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

• 5-AMINO-2-HYDROXYBENZOIC ACID
• 5-AMINOSALICYLIC ACID
• 5-ASA
• ASACOL
• 3-CARBOXY-4-HYDROXYANILINE
• 2-HYDROXY-5-AMINOBENZOIC ACID
• M-AMINOSALICYLIC ACID
• MESALAMINE
• MESALAZINE
• PENTASA
• SALICYLIC ACID, 5-AMINO-
• SALOFALK