CAS 36085-73-1|B-HT 920

[1]. Ricci and Taira Adrenoceptor involvement in the cardiovascular responses to B-HT 920 in sinoaortic denervated rats. Gen.Pharmacol. (1999)32 29.

[2]. Eur J Pharmacol. 1997 May 1;325(2-3):137-44.

[3]. Kohno Y, Fukuzaki K, Kitahara K, Koja T.Anti-tremor activity of talipexole produced by selective dopamine D2 receptor stimulation in cynomolgus monkeys with unilateral lesions in the ventromedial tegmentum.Eur J Pharmacol. 1997 Jan 29;319(2-3):197-205.

[4]. Momiyama T, Sasa M, Takaori S.Inhibition by talipexole, a thiazolo-azepine derivative, of dopaminergic neurons in the ventral tegmental area.Life Sci. 1991;49(7):535-43.

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[6]. Robertson, G.S., et al., In vivo comparisons of the effects of quinpirole and the putative presynaptic dopaminergic agonists B-HT 920 and SND 919 on striatal dopamine and acetylcholine release. J Pharmacol Exp Ther, 1993. 264(3): p. 1344-51.

CHEMICAL IDENTIFICATION

RTECS NUMBER :

XJ7050340

CHEMICAL NAME :

4H-Thiazolo(4,5-d)azepin-2-amine, 5,6,7,8-tetrahydro-6-(2-propenyl)-, dihydrochloride

CAS REGISTRY NUMBER :

36085-73-1

LAST UPDATED :

199712

DATA ITEMS CITED :

10

MOLECULAR FORMULA :

C10-H15-N3-S.2Cl-H

MOLECULAR WEIGHT :

282.26

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

403 mg/kg

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - chromodacryorrhea Sense Organs and Special Senses (Eye) - effect, not otherwise specified Behavioral - tremor

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,383,1993

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

66 mg/kg

TOXIC EFFECTS :

Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory stimulation

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,383,1993

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

455 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

GWXXBX German Offenlegungsschrift Patent Document. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #2820808

TYPE OF TEST :

LD - Lethal dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Primate - monkey

DOSE/DURATION :

>32 mg/kg

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - ptosis Behavioral - somnolence (general depressed activity) Behavioral - coma

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,401,1993 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

91 mg/kg/13W-I

TOXIC EFFECTS :

Endocrine - changes in adrenal weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Reproductive - Effects on Newborn - stillbirth

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,383,1993

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

364 mg/kg/52W-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - changes in lung weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Related to Chronic Data - changes in prostate weight

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,383,1993

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Primate - monkey

DOSE/DURATION :

728 mg/kg/52W-I

TOXIC EFFECTS :

Blood - other changes

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 45,545,1993 ** REPRODUCTIVE DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

5600 ug/kg

SEX/DURATION :

female 14 day(s) pre-mating - 21 day(s) post-birth

TOXIC EFFECTS :

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

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,9,1993

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

3300 ug/kg

SEX/DURATION :

female 7-17 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,9,1993

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

42 mg/kg

SEX/DURATION :

female 15-21 day(s) after conception lactating female 21 day(s) post-birth

TOXIC EFFECTS :

Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive) Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4) Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

REFERENCE :

OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 46,9,1993

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