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NTP CHEMICAL REPOSITORY (RADIAN CORPORATION, AUGUST 29, 1991)
*CATALOG ID NUMBER: 001143
*CAS NUMBER: 58-15-1
*BASE CHEMICAL NAME: DIMETHYLAMINOANTIPYRINE,4-
*PRIMARY NAME: 4-DIMETHYLAMINOANTIPYRINE
*CHEMICAL FORMULA: C13H17N3O
*STRUCTURAL FORMULA: Not printable
*WLN: T5NNVJ A1 BR& DN1&1 E1
-PHYSICAL CHEMICAL DATA
*PHYSICAL DESCRIPTION: LITERATURE: Small colorless crystals or white crystalline
REPOSITORY: White powder
*MOLECULAR WEIGHT: 231.30
*SPECIFIC GRAVITY: Not available
*DENSITY: Not available
*MP (DEG C): 107-109 C [031,042]
*BP (DEG C): Not available
WATER : >=100 mg/mL @ 22 C (RAD)
DMSO : >=100 mg/mL @ 22 C (RAD)
95% ETHANOL : >=100 mg/mL @ 22 C (RAD)
METHANOL : Not available
ACETONE : >=100 mg/mL @ 22 C (RAD)
TOLUENE : Not available
Alcohol: 1 g/1.5 mL 
Benzene: 1 g/12 mL 
Chloroform: 1 g/1 mL 
Ether: 1 g/13 mL 
Vapor pressure: Not available
Vapor density : Not available
Flash point data for this chemical are not available; however, it is
probably combustible. Fires involving this material can be controlled with
a dry chemical, carbon dioxide or Halon extinguisher.
*UEL: Not available LEL: Not available
This chemical is readily attacked by mild oxidizing agents in the
presence of water . It is incompatible with acacia, apomorphine,
aspirin, chloral hydrate, iodine and tannic acid .
This chemical is sensitive to exposure to light [031,295]. UV spectro-
photometric stability screening indicates that solutions of this chemical in
water are stable for at least 24 hours (RAD).
*OTHER PHYSICAL DATA:
Melting point also reported as 134-135 C [016,047]
Solubility in water is increased by the addition of sodium benzoate 
Aqueous solution is slightly alkaline to litmus 
pH (5% water solution): 7.5-9 
Slightly bitter taste 
*NIOSH REGISTRY NUMBER: CD2625000
typ. dose mode specie amount units other
LD50 ims mus 306 mg/kg
LD50 ims rat 340 mg/kg
LD50 ipr ham 380 mg/kg
LD50 ipr mam 300 mg/kg
LD50 ipr mus 169 mg/kg
LD50 ipr rat 190 mg/kg
LDLo ivn cat 100 mg/kg
LD50 ivn dog 121 mg/kg
LD50 ivn gpg 130 mg/kg
LD50 ivn mus 78 mg/kg
LD50 ivn rat 98 mg/kg
LD50 ivn rbt 80 mg/kg
LDLo orl cat 100 mg/kg
LD50 orl dog 220 mg/kg
LD50 orl gpg 910 mg/kg
LD50 orl mus 350 mg/kg
LD50 orl rat 600 mg/kg
LD50 orl rbt 600 mg/kg
LDLo par frg 900 mg/kg
LDLo scu gpg 250 mg/kg
LD50 scu mus 248 mg/kg
LD50 scu rat 295 mg/kg
LDLo scu rbt 250 mg/kg
LDLo unr man 220 mg/kg
LDLo unr mus 225 mg/kg
*AQTX/TLM96: Not available
*SAX TOXICITY EVALUATION:
THR: Human poison by unspecified route. Experimental poison by ingestion,
subcutaneous, intramuscular, intravenous, implant and possibly other
routes. Moderately toxic by parenteral route. An experimental tera-
togen. Experimental reproductive effects. Mutation data. Mixed with
NaNO2 (1:1), it is an experimental carcinogen.
*CARCINOGENICITY: Not available
test lowest dose | test lowest dose
----------- ----------------- | ----------- -----------------
cyt-ham:fbr 3 mmol/L | dni-mus:oth 100 mg/L
dnr-esc 1250 ug/well | msc-ham-orl 100 mg/kg
mma-sat 31 umol/plate | otr-ham-orl 100 mg/kg
otr-rat-orl 2520 mg/kg/6W |
Reproductive Effects Data:
TDLo: orl-mus 60 mg/kg (7-12D preg)
TDLo: orl-mus 900 mg/kg (7-12D preg)
TDLo: orl-rat 60 mg/kg (9-14D preg)
TDLo: orl-rat 900 mg/kg (9-14D preg)
TDLo: scu-mus 630 mg/kg (9-11D preg)
TDLo: scu-mus 600 mg/kg (7-9D preg)
*STANDARDS, REGULATIONS & RECOMMENDATIONS:
NIOSH Criteria Document: None
NFPA Hazard Rating: Health (H): None
Flammability (F): None
Reactivity (R): None
*OTHER TOXICITY DATA:
Status: EPA Genetox Program 1988, Negative: In vitro SCE-nonhuman
EPA TSCA Chemical Inventory, 1986
EPA TSCA Test Submission (TSCATS) Data Base, June 1989
Meets criteria for proposed OSHA Medical Records Rule
-OTHER DATA (Regulatory)
*PROPER SHIPPING NAME (IATA): Not restricted
*HAZARD CLASS: SUBSIDIARY RISK: PACKING GROUP:
*PACKAGING: PASSENGER: PKG. INSTR.: MAXIMUM QUANTITY:
CARGO : PKG. INSTR.: MAXIMUM QUANTITY:
This chemical is used in human and veterinary medicine as an antipyretic,
analgesic and anti-inflammatory agent. It is also sometimes used in drug meta-
bolism. It is also used as a tranquilizer.
Clinical use of this compound has been sharply curtailed due to its
potentially fatal bone-marrow toxicity .
When heated to decomposition this compound emits toxic fumes of nitrogen
*MINIMUM PROTECTIVE CLOTHING: Not available
*RECOMMENDED GLOVE MATERIALS:
GlovES+ Expert System Glove Types For The Neat (Undiluted) Chemical:
This chemical has not been tested for permeation by Radian Corporation;
however, the GlovES+ expert system was used to extrapolate permeation test
information from compounds in the same chemical class. The GlovES+ system uses
permeation data from literature sources; therefore, extra safety margins should
be used with the estimated protection time(s). If this chemical makes direct
contact with your glove, or if a tear, puncture or hole develops, replace them
The GlovES+ expert system is a tool that can help people better manage
protection from chemicals, however this tool cannot replace sound judgment nor
make technical decisions. Our GlovES+ expert system is designed to offer
initial advice and assistance in glove selection while the final glove
selection should be made by knowledgeable individuals based on the specific
Glove Type Model Number Thickness Estimated Protection Time
PVA Edmont 25-545 0.07 mm 240 min
Nitrile Edmont 37-155 0.40 mm 240 min
Viton North F-091 0.24 mm 240 min
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
*OTHER: Not available
You should protect this material from exposure to light, and store
it in a refrigerator.
*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
*DISPOSAL AND WASTE TREATMENT: Not available
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.
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 Respirator Recommendation.
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.
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.
Symptoms of exposure to this compound include allergic reactions, strong
spasmolytic effect on smooth muscle of peripheral blood vessels, irritability,
palsy, copious sweating, dilated pupils, sharp drop then rise in body tempera-
ture, dysuria, dyspnea, anxiety, tenesmus, urinary frequency, intermittent
fever, fatty infiltration of the liver, heart muscle degeneration and death
due to circulatory failure following cardiovascular collapse . Agranulo-
cytosis often occurs [031,295,301,406]. Ingestion may cause central nervous
system stimulation, vomiting, convulsions, cyanosis, tinnitus, leukopenia,
kidney damage and coma [151,301]. Ingestion may also lead to nausea, mental
disturbances, methemoglobinemia, chocolate-colored blood, dizziness, epigas-
tric pain, difficulty in hearing, thready pulse and liver damage . Other
symptoms reported via ingestion include hemolytic anemia, porphyria and severe
gastrointestinal bleeding . Bone marrow depression also occurs .
Rare eye effects include acute transient myopia .
Chronic symptoms include anorexia, edema, oliguria, urticaria, hyper-
sensitivity, aplastic anemia, sore throat, fever, pharygeal membrane, jaundice,
enlargement of the liver and spleen, exfoliative dermatitis, gastric or duo-
denal erosion with perforation or bleeding, adrenal necrosis, thrombocytopenic
purpura and acute leukemia .
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