PHYSICAL DESCRIPTION: White or almost-white crystalline powder. Odorless with a bitter numbing taste. pH (5% aqueous solution) 4-6. (NTP, 1992)

none

Water soluble. Aqueous solutions are acidic.

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

SYMPTOMS: Symptoms of exposure to this compound may include photosensitivity, hypotension, headache, hemolytic anemia, dizziness, disturbed coordination, nervousness, tremor, insomnia, blurred vision, tinnitus, epigastric distress, nausea, vomiting, diarrhea, constipation and tightness of the chest. Other symptoms may include anaphylactic shock, fatigue, confusion, restlessness, euphoria, diplopia, urinary frequency, drowsiness, urticaria, drug rash, excessive perspiration, chills, dryness of the mouth, nose and throat, palpitations, tachycardia, extrasystoles, thrombocytopenia, agranulocytosis, sedation, excitation, irritability, paresthesia, acute labyrinthitis, neuritis convulsions, anorexia, difficult urination, urinary retention, early menses, thickening of bronchial secretions, wheezing and nasal stuffiness. Other symptoms may include inability to concentrate, muscular weakness, nightmares, difficulty in micturition, elation, depression, hyperpyrexia, muscle twitching lassitude, tingling, heaviness, and weakness of hands. Overdosage reactions may include atropine-like symptoms, dry mouth, fixed and dilated pupils, flushing, gastrointestinal symptoms, central nervous system depression to stimulation, hallucinations, convulsions and death.

ACUTE/CHRONIC HAZARDS: When heated to decomposition this chemical emits very toxic fumes of nitrogen oxides and hydrogen chloride. (NTP, 1992)

DIPHENHYDRAMINE HYDROCHLORIDE gives acidic solutions in water. Neutralizes bases. May react with strong oxidizing and strong reducing agents. May catalyze organic reactions. Slowly darkens on exposure to light.

• Ethers
• Hydrocarbons, Aromatic
• Salts, Acidic

No information available.

No information available.

Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (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 protect this material from exposure to light, and store it at ambient temperatures. (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)

• ALLERGAN
• ALLERGIVAL
• ALPHA-HYDROXYDIPHENYLMETHANE-BETA-DIMETHYLAMINOETHYL ETHER HYDROCHLORIDE
• AMBENYL
• BAX
• BENA
• BENADRIL HYDROCHLORIDE
• BENADRYL
• BENADRYL HYDROCHLORIDE
• BENDYLATE
• BENOCTEN
• BENZEHIST
• BENZHYDRAMINE HYDROCHLORIDE
• BENZHYDROL BETA-DIMETHYLAMINOETHYL ETHER HYDROCHLORIDE
• 2-(BENZHYDRYLOXY)-N,N-DIMETHYLETHYLAMINE HYDROCHLORIDE
• 2-BENZHYDRYLOXYETHYL-N,N-DIMETHYLAMMONIUM CHLORIDE
• BETA-DIMETHYLAMINOETHYL BENZHYDRYL ETHER HYDROCHLORIDE
• DABYLEN
• DENYDRYL
• DIFENHYDRAMINE HYDROCHLORIDE
• DIMEDROL
• DIMEDROL HYDROCHLORIDE
• DIMETHYLAMINE BENZHYDRYL ESTER HYDROCHLORIDE
• DIPHENHYDRAMINE HYDROCHLORIDE
• DIPHENYDRAMINE HYDROCHLORIDE
• DIPHENYLHYDRAMINE HYDROCHLORIDE
• 2-(DIPHENYLMETHOXY)-N,N-DIMETHYLETHANAMINE HYDROCHLORIDE
• 2-(DIPHENYLMETHOXY)-N,N-DIMETHYLETHYLAMINE HYDROCHLORIDE
• 2-DIPHENYLMETHOXY-N,N-DIMETHYLETHYLAMINE HYDROCHLORIDE
• DOLESTAN
• ELDADRYL
• ETHYLAMINE, 2-(DIPHENYLMETHOXY)-N,N-DIMETHYL-, HYDROCHLORIDE
• FELBEN
• FENYLHIST
• HALBMOND
• N,N-DIMETHYL-2-(DIPHENYLMETHOXY)ETHYLAMINE HYDROCHLORIDE
• NCI-C56075
• RESMIN
• RESTAMIN
• ROHYDRA
• SK-DIPHENHYDRAMINE
• VALDRENE
• VENA
• WEHYDRYL