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  • Product Name: FI-3542
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100981-43-9

100981-43-9 structure
100981-43-9 structure
  • Name: Ebrotidine
  • Chemical Name: N-(4-bromophenyl)sulfonyl-N'-[2-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]ethyl]methanimidamide
  • CAS Number: 100981-43-9
  • Molecular Formula: C14H17BrN6O2S3
  • Molecular Weight: 477.423
  • Catalog: Signaling Pathways GPCR/G Protein Histamine Receptor
  • Create Date: 2018-07-26 07:17:35
  • Modify Date: 2024-01-06 18:26:52
  • Ebrotidine(FI 3542) is a competitive H2-receptor antagonist (Ki= 127.5 nM) with a potent antisecretory activity and evidenced gastroprotection.IC50 Value: 127.5 nM (Ki)[1]; 0.21mg/kg (ED50, histamine- stimulated acid secretion) [2]Target: H2 receptorin vitro: Ebrotidine displaced 3H-thiotidine specific binding to histamine H2-receptors (Ki: 127.5 nmol/l), showing a higher affinity (p < 0.05) than ranitidine (Ki: 190.0 nmol/l) and cimetidine (Ki: 246.1 nmol/l) [1]. in vivo: Following intravenous administration to rats, ebrotidine inhibited histamine- and pentagastrin-stimulated acid secretion in a dose-dependent manner, ED50 being 0.21 and 0.44 mg/kg, respectively [2]. The mean number of gastric erosions seen at endoscopy after treatment with ebrotidine plus ASA (2.0 +/- 0.3) was significantly lower than that after placebo plus ASA (3.7 +/- 0.2). This reduction in lesion core by ebrotidine was accompanied by a significant increase in gastric blood flow (by 15% in corpus and 26% in antrum), by a rise in transmucosal potential difference (by 12%), and by a decrease of mucosal microbleeding [3]. Results of macroscopic assessment revealed that ebrotidine at doses of 50mg and higher/kg body weight effectively prevented mucosal injury, and that the maximal protective effect was achieved by 1h. Physicochemical analysis established that ebrotidine evoked 30% increase in mucus gel dimension, and showed 20% increase in phospholipids, and the content of sulfo- (18%) and sialomucins (21%) [4].

Name N-(4-bromophenyl)sulfonyl-N'-[2-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]ethyl]methanimidamide
Synonyms 4-Bromo-N-[(E)-({2-[({2-[(diaminomethylene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]ethyl}imino)methyl]benzenesulfonamide
Ebrotidina [Spanish]
Ebrotidina
Benzenesulfonamide, 4-bromo-N-[(E)-[[2-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]ethyl]imino]methyl]-
4-bromo-N-{(E)-[(2-{[(2-carbamimidamido-1,3-thiazol-4-yl)methyl]sulfanyl}ethyl)amino]methylidene}benzenesulfonamide
Ebrotidine
Benzenesulfonamide,N-(((2-(((2-((aminoiminomethyl)amino)-4-thiazolyl)methyl)thio)ethyl)amino)methylene)-4-bromo-,(E)
n-p-bromobenzenesulfonyl-n'-[2-[[[2-[(aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]ethyl]formamidine
Ebrotidinum [Latin]
Ebrotiding
N-[[[2-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]ethyl]amino]methylene]-4-bromobenzenesulfonamide
FI-3542
p-Bromo-N-[[[2-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]ethyl]amino]methylene]benzenesulfonamide
Ulsanic
Ebrotidinum
Description Ebrotidine(FI 3542) is a competitive H2-receptor antagonist (Ki= 127.5 nM) with a potent antisecretory activity and evidenced gastroprotection.IC50 Value: 127.5 nM (Ki)[1]; 0.21mg/kg (ED50, histamine- stimulated acid secretion) [2]Target: H2 receptorin vitro: Ebrotidine displaced 3H-thiotidine specific binding to histamine H2-receptors (Ki: 127.5 nmol/l), showing a higher affinity (p < 0.05) than ranitidine (Ki: 190.0 nmol/l) and cimetidine (Ki: 246.1 nmol/l) [1]. in vivo: Following intravenous administration to rats, ebrotidine inhibited histamine- and pentagastrin-stimulated acid secretion in a dose-dependent manner, ED50 being 0.21 and 0.44 mg/kg, respectively [2]. The mean number of gastric erosions seen at endoscopy after treatment with ebrotidine plus ASA (2.0 +/- 0.3) was significantly lower than that after placebo plus ASA (3.7 +/- 0.2). This reduction in lesion core by ebrotidine was accompanied by a significant increase in gastric blood flow (by 15% in corpus and 26% in antrum), by a rise in transmucosal potential difference (by 12%), and by a decrease of mucosal microbleeding [3]. Results of macroscopic assessment revealed that ebrotidine at doses of 50mg and higher/kg body weight effectively prevented mucosal injury, and that the maximal protective effect was achieved by 1h. Physicochemical analysis established that ebrotidine evoked 30% increase in mucus gel dimension, and showed 20% increase in phospholipids, and the content of sulfo- (18%) and sialomucins (21%) [4].
Related Catalog
References

[1]. Agut J, Sánchez JC, Sacristán A, Action of ebrotidine, ranitidine and cimetidine on the specific binding to histamine H1- and H2-receptors. Arzneimittelforschung. 1997 Apr;47(4A):447-9.

[2]. Palop D, Agut J, Márquez M, Histamine H2-receptor antagonist action of ebrotidine. Effects on gastric acid secretion, gastrin levels and NSAID-induced gastrotoxicity in the rat. Arzneimittelforschung. 1997 Apr;47(4A):439-46.

[3]. Konturek SJ, Kwiecien N, Sito E, Effects of ebrotidine on aspirin-induced gastric mucosal damage and blood flow in humans. Scand J Gastroenterol. 1993 Dec;28(12):1047-50.

[4]. Piotrowski J, Yamaki K, Morita M, Ebrotidine--a new H2-receptor antagonist with mucosal strengthening activity. Biochem Int. 1992 Mar;26(4):659-67.

Density 1.7±0.1 g/cm3
Boiling Point 672.3±65.0 °C at 760 mmHg
Molecular Formula C14H17BrN6O2S3
Molecular Weight 477.423
Flash Point 360.4±34.3 °C
Exact Mass 475.975830
PSA 195.24000
LogP 3.37
Vapour Pressure 0.0±2.1 mmHg at 25°C
Index of Refraction 1.740
Storage condition 2-8℃

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DA9507430
CHEMICAL NAME :
Benzenesulfonamide, N-(((2-(((2-((aminoiminomethyl)amino)-4-thiazolyl)met hyl)thio)ethyl)amino) methylene)-4-bromo-, (E)-
CAS REGISTRY NUMBER :
100981-43-9
LAST UPDATED :
199712
DATA ITEMS CITED :
12
MOLECULAR FORMULA :
C14-H17-Br-N6-O2-S3
MOLECULAR WEIGHT :
477.46

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 :
>8 gm/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: 47,490,1997
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
316 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: 47,490,1997
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - dyspnea Kidney, Ureter, Bladder - hematuria
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,490,1997
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>2 gm/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: 47,490,1997
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
366 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: 47,490,1997
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
107 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - tremor Nutritional and Gross Metabolic - body temperature decrease
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,490,1997 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
14 gm/kg/4W-I
TOXIC EFFECTS :
Liver - changes in liver weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Related to Chronic Data - changes in testicular weight
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,492,1997
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
91 gm/kg/26W-C
TOXIC EFFECTS :
Behavioral - food intake (animal) Blood - changes in erythrocyte (RBC) count Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,498,1997
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
21700 mg/kg/7W-I
TOXIC EFFECTS :
Gastrointestinal - nausea or vomiting Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,492,1997
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
94250 mg/kg/1Y-I
TOXIC EFFECTS :
Gastrointestinal - ulceration or bleeding from small intestine Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases Related to Chronic Data - death
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,498,1997 ** REPRODUCTIVE DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
56 gm/kg
SEX/DURATION :
male 8 week(s) pre-mating female 2 week(s) pre-mating - 3 week(s) post-birth
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,504,1997
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
5 gm/kg
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 47,504,1997
HS Code 2942000000
HS Code 2942000000