pyridostigmine bromide

Suppliers

Names

[ CAS No. ]:
101-26-8

[ Name ]:
pyridostigmine bromide

[Synonym ]:
3-(Dimethylcarbamoyloxy)-1-methylpyridinium Bromide
Pyridostigminbromid
mestinonbromide
EINECS 202-929-9
ro1-5130
3-Dimethylcarbamoyloxy-1-methyl-pyridinium,Bromid
pyridostigmine
3-dimethylcarbamoyloxy-1-methyl-pyridinium,bromide
MFCD00079283
pyridostigmine bromide
Pyridinium, 3-(((dimethylamino)carbonyl)oxy)-1-methyl-, bromide
regonal
kalymin
Pyridinium, 3-[[(dimethylamino)carbonyl]oxy]-1-methyl-, bromide (1:1)
3-Hydroxy-1
3-((Dimethylcarbamoyl)oxy)-1-methylpyridin-1-ium bromide
mestinonebromide
pyridostygmine bromide
3-[(Dimethylcarbamoyl)oxy]-1-methylpyridinium bromide
3-[[(Dimethylamino)carbonyl]oxy]-1-methylpyridinium Bromide
Pyridostigmine (bromide)
3-{[(dimethylamino)carbonyl]oxy}-1-methylpyridinium bromide
pyridinium, 3-[[(dimethylamino)carbonyl]oxy]-1-methyl-, bromide
kalimin
Mestinon
PYBR

Chemical & Physical Properties

[ Density]:
0.9613 g/cm3 (20ºC)

[ Boiling Point ]:
88 (25 torr)

[ Melting Point ]:
154 °C

[ Molecular Formula ]:
C₉H₁₃BrN₂O₂

[ Molecular Weight ]:
261.116

[ Exact Mass ]:
260.016022

[ PSA ]:
33.42000

[ Index of Refraction ]:
1.48 (20ºC)

[ Storage condition ]:
Refrigerator

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UU5270000

CHEMICAL NAME :: Pyridinium, 3-hydroxy-1-methyl-, bromide, dimethylcarbamate (ester)

CAS REGISTRY NUMBER :: 101-26-8

LAST UPDATED :: 199806

DATA ITEMS CITED :: 20

MOLECULAR FORMULA :: C9-H13-N2-O2.Br

MOLECULAR WEIGHT :: 261.15

WISWESSER LINE NOTATION :: T6KJ A1 COVN1&1 &E

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 7800 ug/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - fasciculations Sense Organs and Special Senses (Eye) - visual field changes Gastrointestinal - nausea or vomiting

REFERENCE :: IJMDAI Israel Journal of Medical Sciences. (POB 1435, Jerusalem 91013, Israel) V.1- 1965- Volume(issue)/page/year: 27,659,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 9 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - fasciculations

REFERENCE :: IJMDAI Israel Journal of Medical Sciences. (POB 1435, Jerusalem 91013, Israel) V.1- 1965- Volume(issue)/page/year: 27,659,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 37500 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: -,1042,1995

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2699 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 4,S195,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3100 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 26,145,1983

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2790 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: DCTODJ Drug and Chemical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1977/78- Volume(issue)/page/year: 7,507,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 16 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - miosis (pupillary constriction) Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - respiratory stimulation

REFERENCE :: GNRIDX Gendai no Rinsho. (Tokyo, Japan) V.1-10, 1967-76(?). Volume(issue)/page/year: 2,828,1968

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,354,1982

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 ug/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - miosis (pupillary constriction) Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - respiratory stimulation

REFERENCE :: GNRIDX Gendai no Rinsho. (Tokyo, Japan) V.1-10, 1967-76(?). Volume(issue)/page/year: 2,828,1968

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: MECHAN Medicinal Chemistry, A Series of Reviews. (New York, NY) V.1-6, 1951-63. Discontinued. Volume(issue)/page/year: 3,329,1956 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1350 mg/kg/15D-C

TOXIC EFFECTS :: Blood - other changes Musculoskeletal - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: TOPADD Toxicologic Pathology. (c/o Dr. F.A. de la Iglesia, Warner-Lambert Co., Pharmaceutical Research Div., POB 1047, Ann Arbor, MI 48106) V.6(3/4)- 1978- Volume(issue)/page/year: 18,387,1990

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 140 mg/kg/14D-I

TOXIC EFFECTS :: Gastrointestinal - ulceration or bleeding from small intestine Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase Related to Chronic Data - death

REFERENCE :: FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 14,40,1990

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 168 mg/kg/28D-I

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 14,40,1990

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 540 mg/kg/90D-I

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: FAATDF Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1981- Volume(issue)/page/year: 14,40,1990

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - chicken

DOSE/DURATION :: 225 mg/kg/9W-I

TOXIC EFFECTS :: Blood - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase

REFERENCE :: JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 48,35,1996 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 630 mg/kg

SEX/DURATION :: female 14 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 69,291,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 280 mg/kg

SEX/DURATION :: female 15-21 day(s) after conception lactating female 21 day(s) post-birth

TOXIC EFFECTS :: Reproductive - Maternal Effects - other effects Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 69,291,1991

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 300 mg/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Effects on Newborn - physical

REFERENCE :: TXCYAC Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 1973- Volume(issue)/page/year: 69,291,1991 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81490 No. of Facilities: 58 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 230 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81490 No. of Facilities: 46 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 1619 (estimated) No. of Female Employees: 791 (estimated)

Safety Information

[ Symbol ]:

GHS06

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H300 + H310 + H330-H317

[ Precautionary Statements ]:
Missing Phrase - N15.00950417-P260-P262-P280-P302 + P352 + P310-P304 + P340 + P310

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ Hazard Codes ]:
T+: Very toxic;

[ Risk Phrases ]:
R26/27/28

[ Safety Phrases ]:
S22-S36/37/39-S45

[ RIDADR ]:
UN 2811 6.1/PG 2

[ RTECS ]:
UU5270000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

Pyridin-3-ol
Methyl bromide
3-Pyridinyl dimethylcarbamate

DownStream

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