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Ketoconazole

Ketoconazole Structure
CAS No.
65277-42-1
Chemical Name:
Ketoconazole
Synonyms
ketoconazol;Extina;nizoral;Xolegel;KETOKONAZOL;KETOCONZOLE;CIS-1-ACETYL-4-(4-((2-(2 4-DICHLOROPHENY L)-2-(1H-IMIDAZOL-1-YLMETHYL)-1 3-DIOXOL AN-4-YL)METHOXY);Nizral;R-41400;kw-1414
CBNumber:
CB9146879
Molecular Formula:
C26H28Cl2N4O4
Molecular Weight:
531.43
MOL File:
65277-42-1.mol
MSDS File:
SDS
Modify Date:
2024/8/21 22:41:43

Ketoconazole Properties

Melting point 148-152 °C
Boiling point 753.4±60.0 °C(Predicted)
Density 1.4046 (rough estimate)
refractive index -10.5 ° (C=0.4, CHCl3)
Flash point 9℃
storage temp. 2-8°C
solubility methanol: soluble50mg/mL
pka pKa 3.25/6.22(H2O,t =25,I=0.025) (Uncertain)
form Off-white solid
color white to light yellow
optical activity [α]20/D -1 to 1°, c = 4 in methanol
Water Solubility Soluble in DMSO, ethanol, chloroform, water, and methanol.
Merck 14,5302
BCS Class 2
Stability Stable for 2 years from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 3 months.
InChIKey XMAYWYJOQHXEEK-OZXSUGGESA-N
LogP 4.350
CAS DataBase Reference 65277-42-1(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301-H360F-H373-H410
Precautionary statements  P201-P202-P260-P264-P273-P301+P310
Hazard Codes  T,N,F
Risk Statements  25-36/37/38-23/24/25-50/53-48/22-60-39/23/24/25-11
Safety Statements  36-45-36/37/39-26-61-60-53-36/37-16-7
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS  TK7912300
HazardClass  6.1(b)
PackingGroup  III
HS Code  29349990
Toxicity LD50 in mice, rats, guinea pigs, dogs (mg/kg): 44, 86, 28, 49 i.v.; 702, 227, 202, 780 orally (Heel)
NFPA 704
0
2 0

Ketoconazole price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) UC280 Ketoconazole 65277-42-1 5MG ₹25915.05 2022-06-14 Buy
Sigma-Aldrich(India) UC280 Ketoconazole 65277-42-1 10MG ₹46612.45 2022-06-14 Buy
Sigma-Aldrich(India) PHR1385 Ketoconazole Pharmaceutical Secondary Standard; Certified Reference Material 65277-42-1 1G ₹7664.1 2022-06-14 Buy
Sigma-Aldrich(India) K1003 Ketoconazole 99.0-101.0% (EP, titration) 65277-42-1 100MG ₹18326.73 2022-06-14 Buy
Sigma-Aldrich(India) K-004 Ketoconazole solution 2.0?mg/mL in methanol, ampule of 1?mL, certified reference material, Cerilliant? 65277-42-1 1ML ₹18952.5 2022-06-14 Buy
Product number Packaging Price Buy
UC280 5MG ₹25915.05 Buy
UC280 10MG ₹46612.45 Buy
PHR1385 1G ₹7664.1 Buy
K1003 100MG ₹18326.73 Buy
K-004 1ML ₹18952.5 Buy

Ketoconazole Chemical Properties,Uses,Production

Description

Ketoconazole (Nizoral), an orally effective broadspectrum antifungal agent, blocks hydroxylating enzyme systems by interacting with cytochrome P450 at the heme iron site to inhibit steroid and/or androgen synthesis in adrenals, gonads, liver, and kidney. The most sensitive site of action appears to be the C17-20 lyase reaction involved in the formation of sex steroids. This explains the greater suppressibility of testosterone production than with cortisol. Cholesterol side-chain cleavage and 11β/18-hydroxylase are secondary sites of inhibition.

Chemical Properties

White or almost white powder.

Uses

Ketoconazole is used to treat candidiasis, chronic mucocutaneous candidiasis, oral thrush, candiduria, blastomycosis, coccidioidomycosis, histoplasmosis, chromomycosis, and paracoccidioidomycosis. Ketoconazole is an antifungal agent.

Indications

Ketoconazole (Nizoral) is approved for treating dermatophyte infections unresponsive to griseofulvin and for patients unable to tolerate that drug. It is a broad-spectrum antifungal agent that in very high doses inhibits several steps in the biosynthesis of both adrenal and gonadal steroids. While the normal antifungal dose is 200 mg/day, testosterone biosynthesis in both the adrenal and testis is completely abolished by doses of 800 to 1,600 mg/day. This drug is used most commonly for large virilizing adrenal tumors that cannot be surgically removed.

World Health Organization (WHO)

Ketoconazole, an imidazole antifungal agent, was introduced in 1978 for the topical and systemic treatment of a wide variety of fungal infections. Its use by mouth has been associated with hepatotoxicity, including cases of hepatitis, which have usually been reversible on discontinuation of the drug, but some fatalities have also occurred. Ketoconazole is widely marketed.

Antimicrobial activity

The spectrum includes dermatophytes, some dimorphic fungi and Candida spp.

Acquired resistance

Resistance has been documented in patients treated for chronic mucocutaneous candidosis and AIDS patients with oropharyngeal or esophageal candidosis. Some fluconazoleresistant C. albicans and C. glabrata are cross-resistant to ketoconazole.

General Description

Ketoconazole is an imidazole antifungal agent administered through topical or oral means. It is used for the treatment of chronic mucocutaneous candidiasis, fungal infections of the gastro-intestinal tract, dermatophyte infections, systemic infections, and fungal infections in immuno-compromised patients.

Pharmaceutical Applications

A synthetic dioxolane imidazole available for oral and topical use.

Biological Activity

Antifungal agent; potent inhibitor of cytochrome P450c17.

Mechanism of action

Ketoconazole has little effect on Aspergillus or Cryptococcus. Ketoconazole is highly dependent on low stomach pH for absorption, and antacids or drugs that raise stomach pH will lower the bioavailability of ketoconazole. As with other azoles, it is extensively metabolized by microsomal enzymes. All the metabolites are inactive. Evidence that CYP3A4 plays a significant role in metabolism of ketoconazole is that coadministration of CYP3A4 inducers, such as phenytoin, carbamazepine, and rifampin, can cause as much as a 50% reduction in levels of ketoconazole.

Pharmacokinetics

Oral absorption: Variable
Cmax 400 mg oral: c. 5–6 mg/L after 2 h
Plasma half-life: 6–10 h
Volume of distribution: 0.36 L/kg
Plasma protein binding: >95%
It is erratically absorbed after oral administration. Absorption is favored by an acid pH. Food delays absorption, but does not significantly reduce the peak serum concentration. Absorption is reduced if it is given with compounds that reduce gastric acid secretion. Penetration into CSF is generally poor and unreliable, although effective concentrations have been recorded with high doses in some cases of active meningitis. It is extensively metabolized by the liver, and the metabolites are excreted in the bile. Less than 1% of an oral dose is excreted unchanged in the urine.

Clinical Use

Ketoconazole remains useful in the treatment of cutaneous and mucous membrane dermatophyte and yeast infections, but it has been replaced by the newer triazoles in the treatment of most serious Candida infections and disseminated mycoses. Ketoconazole is usually effective in the treatment of thrush, but fluconazole is superior to ketoconazole for refractory thrush. Widespread dermatophyte infections on skin surfaces can be treated easily with oral ketoconazole when the use of topical antifungal agents would be impractical. Treatment of vulvovaginal candidiasis with topical imidazoles is less expensive.

Side effects

Nausea, vomiting, and anorexia occur commonly with ketoconazole, especially when high doses are prescribed. Epigastric distress can be reduced by taking ketoconazole with food. Pruritis and/or allergic dermatitis occurs in 10% of patients. Liver enzyme elevations during therapy are not unusual and are usually reversible. Severe ketoconazole-associated hepatitis is rare.
At high doses, ketoconazole causes a clinically significant reduction in testosterone synthesis and blocks the adrenal response to corticotropin. Gynecomastia, impotence, reduced sperm counts, and diminished libido can occur in men, and prolonged drug use can result in irregular menses in women. These hormonal effects have led to the use of ketoconazole as a potential adjunctive treatment for prostatic carcinoma.

Metabolism

Ketoconazole is extensively degraded by the liver, and very little active drug is excreted in either the urine or bile; the dose need not be modified for renal insufficiency. Adverse reactions to topical ketoconazole are very rare.

Precautions

Both rifampin and isoniazid lower plasma ketoconazolelevels, and concomitant administration should be avoided.Phenytoin serum levels should be monitored closelywhen ketoconazole is prescribed.Ketoconazole causes increasesin serum concentrations of warfarin, cyclosporine,and sulfonylureas. Because of its ability to increase serumcyclosporine levels, ketoconazole has been given to cyclosporine-dependent cardiac transplant recipients to reducethe dose of cyclosporine needed and as a cost-savingmeasure.

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Ketoconazole Spectrum

,3-dioxolan-4-yl)methoxy)phenyl)-,cis- fungarest fungoral ketoderm ketoisdin kw-1414 orifungalm panfungol piperazine,1-acetyl-4-(4-((2-(2,4-dichlorophenyl)-2-(1h-imidazol-1-ylmethyl)-1 R-41400 (+/-)-CIS-1-ACETYL-4-(4-[(2-[2,4-DICHLOROPHENYL]-2-[1H-IMIDAZOL-1-YLMETHYL]-1,3-DIOXOLAN-4-YL)-METHOXY]PHENYL)PIPERAZINE [+/-]-CIS-1-ACETYL-4-[4-([2-(2,4-DICHLOROPHENYL)-2-(1H-IMIDAZOL-1-YLMETHYL)-1,3-DIOXOLAN-4-YL]-METHOXY)-PHENYL]PIPERAZINE CIS-1-ACETYL-4-[4-[[2-(2,4-DICHLOROPHENYL)-2-(1H-IMIDAZOL-1-YLMETHYL)-1,3-DIOXOLAN-4-YL]METHOXY]PHENYL]PIPERAZINE KETOCONAZOLE-D3 KETOCANAZOLE KETOCONAZOLE KETOCONAZOLE, USP STANDARD KETOCONAZOLE, IMP. D (EP): 1-(4-{4-[(RS,SR)-2-(2,4-DICHLOROPHENYL)-2-(1-IMIDAZOLYLMETHYL)-1,3-DIOXOLAN-4-YLMETHOXY]PHENYL}PIPERAZINE MM(CRM STANDARD) KETOCONAZOLE, EP STANDARD KETOCONAZOLE EP USP KETOCONAZOLE EPK(CRM STANDARD) KETOCONAZOLE USP(CRM STANDARD) KETOCONAZOLE(REAGENT / STANDARD GRADE) MICONAZOLE EPM(CRM STANDARD) KetoconazoleUsp24 Ketoconazole-Bp/Ep/Usp Ketoconaole Piperazine, 1-acetyl-4-4-(2R,4S)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-ylmethoxyphenyl-, rel- KETOCONAZOLE,USP22(BULK KETOCONAZOLE EP KETOCONAZOLE(RG) Piperazine, 1-acetyl-4-[4-[[(2R,4S)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-, rel- (9CI) Ketoconazole USP25/EP2002/CP2000 KETOCONAZOLE, MM(CRM STANDARD) (+/-)-cis-1-Acetyl-4-[4-[[2-(2,4-dichlorophenyl)-2-(imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazine Fungarest, Ketoderm Ketokonazole (DMF) 1-[4-[4-[[(2R,4S)-2-(2,4-Dichlorophenyl)-2-(imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]ethanone Nizral (±)-cis-1-Acetyl-4-(p-((2-(2,4-dichlorophenyl)-2-(imidazol-1-ylmethyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazine Fitonal rel-2-(2,4-Dichlorophenyl)-2α*-(1H-imidazole-1-ylmethyl)-4β*-[4-(4-acetylpiperazine-1-yl)phenoxymethyl]-1,3-dioxolane Ketoconazole,(±)-cis-1-Acetyl-4-(4-[(2-[2,4-dichlorophenyl]-2-[1H-imidazol-1-ylmethyl]-1,3-dioxolan-4-yl)-methoxy]phenyl)piperazine Ketoconazole (200 mg) 1-[4-(4-{[(2S,4R)-2-(2,4-dichlorophenyl)-2-(1H-iMidazol-1-ylMethyl)-1,3-dioxolan-4-yl]Methoxy}phenyl)piperazin-1-yl]ethan-1-one Brizoral Ketozoral Onofin K rel-1-[4-[4-[[(2R,4S)-2-(2,4-dichlorophenyl)-2-(1H-iMidazol-1-ylMethyl)-1,3-dioxolan-4-yl]Methoxy]phenyl]-1-piperazinyl]ethanone Ketoconazole API Ketoconazole/R41400 Ketoconazole Capsules Ketoconazole, 98.0%(LC&T Ketoconazole solution 1-(4-(4-(((2R,4S)-2-((1H-imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethanone 1-(4-(4-(((2S,4R)-2-((1H-imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethanone CIS-1-ACETYL-4-(4-{[2-(2,4-DICHLOROPHENY L)-2-(1H-IMIDAZOL-1-YLMETHYL)-1,3-DIOXOL AN-4-YLIMETHOXY} PHENYL) PIPERAZINE Nizoral, Extina, Xolegel, Kuric