1-Aminobenzotriazole

Names

[ Name ]:
1-Aminobenzotriazole

[Synonym ]:
MFCD00132902
1-Benzotriazolamine,ABT
benzotriazol-1-amine
1H-1,2,3-Benzotriazol-1-amine
1-Benzotriazolamine
1H-Benzo[d][1,2,3]triazol-1-amine
1-Aminobenzotriazole
1H-Benzotriazol-1-amine

Biological Activity

[Description]:

1-Aminobenzotriazole is a nonspecific and irreversible inhibitor of cytochrome P450 (P450).

[Related Catalog]:

Signaling Pathways >> Metabolic Enzyme/Protease >> Cytochrome P450

Research Areas >> Cancer

[Target]

P450[1]

[In Vitro]

1-Aminobenzotriazole (ABT) alone significantly increases the expression levels of CYP2B6 in two different hepatocytes (7.3- and 10.8-fold, respectively). Upon co-treatment with 1-Aminobenzotriazole, the induction of CYP2B6 expression by CITCO or rifampin is potentiated: 12.6- and 4.0-fold for CITCO as well as 3.9- and 2.5-fold for rifampin. 1-Aminobenzotriazole has a greater potentiation effect on CITCO than on rifampin. 1-Aminobenzotriazole alone increases the expression levels of CYP3A4 in tow different hepatocytes (by 2.0- and 3.8-fold). Upon co-treatment with 1-Aminobenzotriazole, the effects of CITCO on CYP3A4 expression levels are potentiated by 3.8- and 6.0- fold as compare to cells treated with CITCO alone[1]. 1-Aminobenzotriazole (ABT) (1 mM) shows pronounced (~95%) inhibition of the formation of N-acetylprocainamide compare with the control without 1-Aminobenzotriazole[2].

[In Vivo]

Oral 1-Aminobenzotriazole (ABT) (100 mg/kg, 2 h predose) decreases the clearance of intravenous procainamide (45%) in rats, accompanied by a decreased N-acetylprocainamide-to-procainamide ratio in urine (0.74 versus 0.21) and plasma (area under the curve ratio 0.59 versus 0.11). The urinary recovery of procainamide increases from 18 to 30%, whereas the recovery of N-acetylprocainamide in urine decreases from 13.3 to 6.5% with 1-Aminobenzotriazole[2]. Pretreatment of rats with 100 mg/kg oral 1-Aminobenzotriazole (ABT) administered 2 hours before a semisolid caloric test meal markedly delays gastric emptying. 1-Aminobenzotriazole also increases stomach weights by 2-fold[3].

[Cell Assay]

Freshly isolated human hepatocytes are used in this study. Briefly, hepatocytes are placed in serum-free Williams’ E media containing 0.1 μM dexamethasone, 10 μg/mL gentamicin, 15 mM HEPES, 2 mM L-glutamine, and 1% ITS. Cells are incubated for 10 hr at 37°C in an atmosphere containing 5% CO2. After recovery, the hepatocytes are treated with media containing CITCO (100 nM), rifampin (10 μM) or vehicle (ethanol), with or without 1-Aminobenzotriazole (ABT) (1 mM) for 72 hr[1].

[Animal admin]

Male Sprague-Dawley rats (0.26 to 0.30 kg, n=3 per treatment) receive an oral dose of 1-Aminobenzotriazole (ABT) (100 mg/kg, 2 mL/kg) 2 h before a single intravenous bolus of procainamide (10 mg/kg, 2 mL/kg). The control group receives only the intravenous bolus of procainamide without 1-Aminobenzotriazole pretreatment. The vehicle for both 1-Aminobenzotriazole and procainamide is 10% dimethylacetamide/90% water (v/v). Rats are fed 4 h after dosing, and serial blood samples are collected at 0.03, 0.17, 0.25, 0.5, 1, 2, 4, and 6 h postdose. Blood samples are centrifuged using tubes containing K3-EDTA as the anticoagulant to obtain plasma. Urine samples are also collected over 24 h postdose. Plasma and urine samples are frozen at -20°C until analysis[2].

[References]

[1]. Yang K, et al. Induction of CYP2B6 and CYP3A4 expression by 1-aminobenzotriazole (ABT) in human hepatocytes. Drug Metab Lett. 2010 Aug;4(3):129-33.

[2]. Sun Q, et al. 1-Aminobenzotriazole, a known cytochrome P450 inhibitor, is a substrate and inhibitor of N-acetyltransferase. Drug Metab Dispos. 2011 Sep;39(9):1674-9.

[3]. Stringer RA, et al. 1-Aminobenzotriazole modulates oral drug pharmacokinetics through cytochrome P450 inhibition and delay of gastric emptying in rats. Drug Metab Dispos. 2014 Jul;42(7):1117-24.

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.5±0.1 g/cm3

[ Boiling Point ]:
319.3±25.0 °C at 760 mmHg

[ Melting Point ]:
81-84 °C(lit.)

[ Molecular Formula ]:
C₆H₆N₄

[ Molecular Weight ]:
134.139

[ Flash Point ]:
146.9±23.2 °C

[ Exact Mass ]:
134.059250

[ PSA ]:
56.73000

[ LogP ]:
0.75

[ Vapour Pressure ]:
0.0±0.7 mmHg at 25°C

[ Index of Refraction ]:
1.774

[ Water Solubility ]:
slightly soluble

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S36-S37/39

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ HS Code ]:
2933990090

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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