QUINIDINE SULFATE (2:1) (salt)
Names
[ CAS No. ]:
50-54-4
[ Name ]:
QUINIDINE SULFATE (2:1) (salt)
Biological Activity
[Description]:
Quinidine Monosulfate is an antiarrhythmic agent. Quinidine Monosulfate is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine Monosulfate is also a K+ channel blocker with an IC50 of 19.9 μM. Quinidine Monosulfate can be used for malaria research[1][2][3].
[Related Catalog]:
[In Vitro]
Quinidine is an anti-arrythmic drug which affects ionic currents in heart muscle and which has also been shown to be a potent blocker of several classes of K+ channel in a variety of cell types[1]. Bath application of quinidine causes a dose-dependent reduction of the peak amplitude of Ik. The Kd for blockade of Ik at 0 mV is estimated to be 41 μM[1]. Quinidine elicits a dose-dependent increase of the rate of the decay of Ik and this effect is enhanced by membrane depolarization. Quinidine also causes a 5 mV hyperpolarizing shift of the steady-state inactivation curve and increases the half-time for recovery from inactivation. Quinidine does not affect the onset of inactivation measured at -30 mV[1].
[In Vivo]
Quinidine sulfate is rapidly absorbed, with peak plasma concentrations 60-90 min after an oral dose. Other salts (gluconate, polygalacturonate) are more slowly absorbed, with lower peak concentrations[2]. Quinidine is approximately 70-90 % bound to plasma proteins. It undergoes hepatic oxidative metabolism to form an N-oxide, a 3-hydroxy form, an O-demethyl form and 2'-quinidinone. Over one-half of patients starting quinidine stop within the first year of therapy because of side effects. These include, commonly, diarrhea, nausea, and vomiting which are not necessarily related to high plasma concentrations[2]. Quinidine inhibits metabolism of amphetamine in rats. Quinidine pretreatment results in a significant decrease in the excretion of p-hydroxyamphetamine at 24 and 48 h to 7.2 and 24.1% of the vehicle-control levels, respectively, accompanied by a significant increase in amphetamine excretion between 24 and 48 h to 542% of the control[3].
[References]
Chemical & Physical Properties
[ Boiling Point ]:
495.9ºC at 760mmHg
[ Melting Point ]:
212ºC
[ Molecular Formula ]:
C40H50N4O8S
[ Molecular Weight ]:
746.91200
[ Flash Point ]:
253.7ºC
[ Exact Mass ]:
746.33500
[ PSA ]:
174.16000
[ LogP ]:
6.65020
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- VA5950000
- CAS REGISTRY NUMBER :
- 50-54-4
- LAST UPDATED :
- 199701
- DATA ITEMS CITED :
- 23
- MOLECULAR FORMULA :
- C40-H48-N4-O4.H2-O4-S
- MOLECULAR WEIGHT :
- 747.00
- WISWESSER LINE NOTATION :
- T66 BNJ HO1 EYQ- DT66 A B CNTJ G1U1 &WSQQ
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - man
- DOSE/DURATION :
- 240 mg/kg/2W-I
- TOXIC EFFECTS :
- Sense Organs and Special Senses (Eye) - conjunctive irritation Endocrine - tumors Musculoskeletal - joints
- REFERENCE :
- JTCTDW Journal of Toxicology, Clinical Toxicology. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.19- 1982- Volume(issue)/page/year: 20,367,1983
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - woman
- DOSE/DURATION :
- 272 mg/kg/17D-I
- TOXIC EFFECTS :
- Vascular - other changes
- REFERENCE :
- AIMDAP Archives of Internal Medicine. (AMA, 535 N. Dearborn St., Chicago, IL 60610) V.1- 1908- Volume(issue)/page/year: 145,2051,1985
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - man
- DOSE/DURATION :
- 386 mg/kg/30D-I
- TOXIC EFFECTS :
- Blood - changes in cell count (unspecified) Nutritional and Gross Metabolic - body temperature increase
- REFERENCE :
- AJMEAZ American Journal of Medicine. (Technical Pub., 875 Third Ave., New York, NY 10022) V.1- 1946- Volume(issue)/page/year: 77,345,1984
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human
- DOSE/DURATION :
- 9600 mg/kg/8W
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - tremor Lungs, Thorax, or Respiration - other changes
- REFERENCE :
- JAMAAP JAMA, Journal of the American Medical Association. (AMA, 535 N. Dearborn St., Chicago, IL 60610) V.1- 1883- Volume(issue)/page/year: 238,884,1977
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - woman
- DOSE/DURATION :
- 409 gm/kg/14Y
- TOXIC EFFECTS :
- Behavioral - hallucinations, distorted perceptions
- REFERENCE :
- JAMAAP JAMA, Journal of the American Medical Association. (AMA, 535 N. Dearborn St., Chicago, IL 60610) V.1- 1883- Volume(issue)/page/year: 237,2093,1977
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - man
- DOSE/DURATION :
- 88 mg/kg/10D-I
- TOXIC EFFECTS :
- Liver - hepatitis (hepatocellular necrosis), diffuse Nutritional and Gross Metabolic - body temperature increase Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases
- REFERENCE :
- GASTAB Gastroenterology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1943- Volume(issue)/page/year: 70,1136,1976
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Human - woman
- DOSE/DURATION :
- 32 mg/kg/2D
- TOXIC EFFECTS :
- Skin and Appendages - dermatitis, irritative (after systemic exposure)
- REFERENCE :
- DICPBB Drug Intelligence and Clinical Pharmacy. (POB 42435, Cincinnati, OH 45242) V.3- 1969- Volume(issue)/page/year: 16,615,1982
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Multiple routes
- SPECIES OBSERVED :
- Human - man
- DOSE/DURATION :
- 30 mg/kg/2D-I
- TOXIC EFFECTS :
- Cardiac - arrhythmias (including changes in conduction) Lungs, Thorax, or Respiration - dyspnea Lungs, Thorax, or Respiration - cyanosis
- REFERENCE :
- AIMEAS Annals of Internal Medicine. (American College of Physicians, 4200 Pine St., Philadelphia, PA 19104) V.1- 1927- Volume(issue)/page/year: 16,571,1942
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 456 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 18,1127,1968
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 140 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,156,1959
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 610 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 18,1127,1968
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 55 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- PJPPAA Polish Journal of Pharmacology and Pharmacy. (ARS Polona, POB 1001, 00-068 Warsaw 1, Poland) V.25- 1973- Volume(issue)/page/year: 44,187,1992
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 505 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FRPPAO Farmaco, Edizione Pratica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 35,49,1980
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 135 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 124,53,1958
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 54 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 105,221,1956
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Mammal - dog
- DOSE/DURATION :
- 19 mg/kg
- TOXIC EFFECTS :
- Behavioral - somnolence (general depressed activity) Behavioral - tremor Behavioral - convulsions or effect on seizure threshold
- REFERENCE :
- DECRDP Drugs under Experimental and Clinical Research. (Bioscience Ediprint, Blvd. James-Fazy 13, 1201 Geneva 1, Switzerland) V.1- 1977- Volume(issue)/page/year: 10,197,1984
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Mammal - cat
- DOSE/DURATION :
- 16 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- PJPPAA Polish Journal of Pharmacology and Pharmacy. (ARS Polona, POB 1001, 00-068 Warsaw 1, Poland) V.25- 1973- Volume(issue)/page/year: 32,833,1980
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rabbit
- DOSE/DURATION :
- 30 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- PJPPAA Polish Journal of Pharmacology and Pharmacy. (ARS Polona, POB 1001, 00-068 Warsaw 1, Poland) V.25- 1973- Volume(issue)/page/year: 32,833,1980
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - guinea pig
- DOSE/DURATION :
- 362 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FRPPAO Farmaco, Edizione Pratica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 35,49,1980
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - guinea pig
- DOSE/DURATION :
- 117 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- FRPPAO Farmaco, Edizione Pratica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 35,49,1980 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80504 No. of Facilities: 101 (estimated) No. of Industries: 2 No. of Occupations: 7 No. of Employees: 3397 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80504 No. of Facilities: 178 (estimated) No. of Industries: 3 No. of Occupations: 6 No. of Employees: 2948 (estimated) No. of Female Employees: 1491 (estimated)
Safety Information
[ Hazard Codes ]:
Xn
[ Risk Phrases ]:
22
[ Safety Phrases ]:
22-45
[ RIDADR ]:
UN 1544