Sunday, June 28, 2026

Montelukast Sodium CAS 151767-02-1 Wholesale & Bulk

 Montelukast is a selective leukotriene receptor antagonist used orally for the treatment of asthma and allergic rhinitis. It is also a powerful oral preparation that can significantly improve cis-inflammatory indicators. Biochemical and pharmacological bioassays have shown that montelukast sodium is highly affinity and selective for CysLT1 receptors (compared to other pharmacologically important airway receptors such as prostaglandins, cholinergics, and β-adrenergic receptors). Montelukast efficiently inhibits the physiological effects of LTC4, LTD4 and LTE4 binding to CysLT1 receptors without any receptor agonist activity. A second type of cysteylleukotriene receptor (CysLT2) is present in the lungs, but may be confined to blood vessels.

 

Montelukast sodium is suitable for the prevention and long-term treatment of asthma in adults and children, including the prevention of asthma symptoms during the day and at night, the treatment of asthma patients sensitive to aspirin, and the prevention of exercise-induced bronchoconstriction, it can also be used to relieve seasonal allergic rhinitis symptoms in patients aged 15 years and older who are ineffective or intolerant to other treatments.

 

Specifications of Montelukast Sodium CAS 151767-02-1

 

Item

Specifications

Results

Appearance

White or almost white hygroscopic powder

Almost white powder

Water

≤4.0%

0.34%

Assay

98.0% - 102.0%

99.5%

 

Parameters of Montelukast Sodium CAS 151767-02-1

 

Product parameters

Cas number:

151767-02-1

Appearance:

White or almost white hygroscopic powder

Purity:

98.0% - 102.0%

Package details:

1kg/bag;25kg/drum

Brand:

Fortunachem

 

Unique Advantages for Montelukast Sodium Cas 151767-02-1 Wholesale

Guaranteed the purity

High quality & competitive price

Quality control

Fast feedback

Prompt shipment

 

Packing of Montelukast Sodium Cas 151767-02-1 Bulk

 

If you want to know more kinds of laboratory chemicals, please visit our website.

 

 



China Supplier High Quality Wholesale Price Monosodium Glutamate CAS 142-47-2 Wholesale & Bulk

 Monosodium glutamate is an important umami agent that has an enhancing effect on the aroma. Monosodium glutamate is widely used in food flavoring, which can be used alone or in combination with other amino acids.

 

Although glutamic acid is not an essential amino acid, it has amino transfer with ketoacids in nitrogen metabolism and can synthesize other amino acids. Glutamic acid has the effect of reducing toxins in the blood. When liver function is impaired, the ammonia content in the blood increases, causing severe nitrogen metabolism disorders, leading to hepatic coma, while glutamate can work with ammonia to reduce the amount of ammonia in the blood. In addition, brain tissue can only oxidize glutamic acid, not other amino acids. When glucose supply is insufficient, glutamine acts as an energy source for brain tissue, so glutamate is necessary to improve and maintain brain function.

 

Specifications of Monosodium Glutamate CAS 142-47-2

 

Items

Specifications

Results

Appearance

Colorless to   white crystalline granules or powder,soluble in water,no vislble   impurities.Has a special flavor,no smell.

Conform

Monosodium L-glutamate(Assay %)

≥99.0%

99.52%

Transmitiance

≥98%

99.0%

Specific rotation[α]D20

+24.9~+25.3°

25.02°

Loss on Drying(%)

≤0.5

0.09

Iron(Fe)(mg/kg)

≤5

5

Sulfate(as SO42-)(%)

≤0.05%

0.05%

Chloride(as CL-)(%)

≤0.1%

0.1%

PH

6.7~7.5

7.01

Conclusion

The above mentioned product   conforms to GB/T8967.

 

Parameters of Monosodium Glutamate CAS 142-47-2

 

Product parameters

Cas number:

142-47-2

Appearance:

White crystalline powder

Purity:

99%min

Package details:

25kg/bag

Brand:

Fortunachem

 

L-(+)-Sodium Glutamate is the monosodium salt of the naturally occurring L-isomer of glutamic acid. Its chemical formula is C₅H₈NO₄Na, and it is one of the most common forms of the flavor enhancer known as MSG (Monosodium Glutamate).

 

Its structure consists of:

 

L-Glutamate Anion: The core is the glutamate molecule, which is the deprotonated, anionic form of glutamic acid. It features:

 

An α-amino group (-NH₃⁺), which is protonated and positively charged at neutral pH.

 

A backbone with a five-carbon chain.

 

Two carboxylate groups (-COO⁻): one at the alpha position (part of the amino acid backbone) and one at the end of the side chain (the gamma position). These are deprotonated and negatively charged.

 

Sodium Cation (Na⁺): The sodium ion acts as the counterion, balancing the net negative charge of the glutamate anion, resulting in an overall neutral salt.

 

This structure, with separated positive and negative charges, makes it a highly water-soluble zwitterion in its solid and dissolved states.

 

Key Chemical Properties

Chirality and Optical Activity: The "L-(+)" designation is crucial.

 

L- refers to the specific three-dimensional configuration around the alpha carbon, identical to the L-glutamic acid found in proteins. This is the biologically active form.

 

(+) indicates that it is dextrorotatory, meaning it rotates the plane of plane-polarized light to the right. This is a specific physical property of this enantiomer.

 

Flavor-Enhancing Mechanism (Umami): Chemically, L-glutamate is the key compound responsible for the "umami" taste sensation. It binds specifically and with high affinity to G-protein-coupled receptors (specifically, the T1R1/T1R3 receptor) on the human tongue. The specific spatial arrangement of the L-glutamate anion, with its two negatively charged carboxylate groups and the positively charged amino group positioned at a precise distance, is essential for activating this taste receptor. The D-enantiomer does not have this effect.

 

Acid-Base Behavior: As a salt of a weak acid (glutamic acid), its aqueous solution is slightly basic. It can participate in buffer systems and its ionic nature contributes to its high solubility in water but insolubility in non-polar organic solvents.

 

Applications and Context

Flavor Enhancer: Its primary use is as MSG in the food industry to impart a savory, meaty umami taste to a wide variety of dishes and processed foods.

 

Biochemical Role: In metabolism, it is a key intermediate in the citric acid cycle and in amino acid transamination reactions.

 

Neurotransmitter: In the free acid form (glutamic acid), it is the major excitatory neurotransmitter in the mammalian central nervous system. However, the sodium salt form does not cross the blood-brain barrier in significant amounts when consumed in food.

 

In summary, L-(+)-Sodium Glutamate is the specific, naturally occurring salt form of glutamic acid, whose unique chemical structure and chirality are directly responsible for its potent umami taste and its widespread use as a flavor enhancer.

 

Application of monosodium glutamate CAS 142-47-2 Wholesale

Used as a flavor enhancer.

 

Package of our Monosodium Glutamate CAS 142-47-2 Bulk

 

If you want to know more kinds of chemical product, please visit our website.

 

 



China Chemical Factory Supply High Quality Miconazole Nitrate CAS 22832-87-7 with good service Wholesale & Bulk

 Miconazole nitrate is an antifungal drug. It inhibits the biosynthesis of ergosterol, the component of fungal cell membranes, destroys the structure of cell membranes, increases the permeability of cell membranes, leads to leakage of intracellular components and inhibits the utilization of glucose, prevents nutrient uptake, and ultimately causes fungal cells to die.

 

Miconazole nitrate is a imidazole derivative and is a broad-spectrum antifungal. It has inhibitory and killing effects on skin fungi, candida, yeast and other algae, ascomycetes, cryptococcus, etc., and also has a strong antibacterial effect on gram-positive cocci and bacilli. Its indications are: (1) Skin and nail infections caused by skin fungi, yeast and other fungi. Such as: athlete's foot, jock itch, ringworm of the hands, tinea corporis, tinea versicolor, tinea capitis, tinea barbel, onychomycosis, skin, finger (toe) onychopsis; Angular cheilitis, otitis externa, and secondary infections caused by gram-positive bacteria. (2) Vaginal infections and secondary infections caused by yeast (such as candida, etc.) and gram-positive bacteria.

 

Specifications of Miconazole Nitrate CAS 22832-87-7

 

Items


Specification


Result

Assay

98.0%-102.0%

99.77%

Apperance

White either type white crystal powder

White crystal powder

Loss on drying

≤0.5%

0.10%

Residue on ignition

≤0.2%

0.06%

Related substances

Individual compounds≤0.25%
The sum of compounds≤0.5%

0.17%

0.2%

 

Parameters of Miconazole Nitrate CAS 22832-87-7

 

Product parameters

Cas number:

22832-87-7

Appearance:

White either type white crystal powder

Purity:

98%-102%

Package details:

25kg/drum

Brand:

Fortunachem

 

Miconazole nitrate is the nitrate salt form of miconazole, a synthetic imidazole antifungal medication. It is primarily used to treat a wide variety of fungal (mycotic) and yeast infections.

 

What It Is & How It Works

Chemical Class: Imidazole antifungal.

 

Mechanism of Action: It works by inhibiting the synthesis of ergosterol, a critical component of fungal and yeast cell membranes.

 

It blocks the enzyme lanosterol 14α-demethylase, which is dependent on cytochrome P-450.

 

This causes a buildup of toxic sterol precursors and a deficiency of ergosterol.

 

The result is damaged cell membranes, increased permeability, leakage of cellular contents, and ultimately fungal cell death.

 

Why the Nitrate Salt? The nitrate salt form improves the compound's stability, crystallinity, and solubility in topical formulations, making it more effective for creams, powders, and sprays.

 

Primary Medical Uses

Miconazole nitrate is a broad-spectrum antifungal effective against:

 

Dermatophytes (e.g., Trichophyton, Epidermophyton)

 

Yeasts (e.g., Candida albicans)

 

Molds

 

It is commonly used to treat superficial infections of the skin, nails, and mucous membranes:

 

Skin & Nail Infections:

 

Athlete's Foot (Tinea pedis)

 

Ringworm (Tinea corporis, Tinea cruris/jock itch)

 

Fungal nail infections (Onychomycosis)

 

Cutaneous candidiasis (yeast infection on skin)

 

Mucous Membrane Infections:

 

Vaginal Yeast Infections (Vaginal candidiasis) – available as creams, pessaries, and combination packs.

 

Oral Thrush (Oropharyngeal candidiasis) – available as an oral gel. Patients must be instructed to hold it in the mouth for as long as possible before swallowing.

 

Prevention: Used in some antifungal powders to prevent fungal infections in skin folds (intertrigo), especially in warm, moist environments.

 

Formulations: Available over-the-counter (OTC) and by prescription in various forms: cream, powder, spray, oral gel, vaginal suppositories/cream, and medicated wipes.

 

Other (Non-Medical) Uses

Laboratory & Research:

 

Research Tool: Used in cell biology and mycology labs as a selective inhibitor of cytochrome P-450 enzymes and sterol biosynthesis to study fungal metabolism and resistance mechanisms.

 

Antifungal Agent in Culture Media: Sometimes incorporated into microbial culture media to suppress fungal contamination while allowing bacteria to grow, though other agents like amphotericin B are more common for this purpose.

 

Key Safety Notes

Topical Use Only: Most formulations (cream, powder) are for external use only. The oral gel is specifically designed for mucosal application.

 

Allergy: Contraindicated in patients with known hypersensitivity to miconazole or other imidazoles.

 

Drug Interactions: Systemic absorption can occur, especially from mucous membranes. It can inhibit liver enzymes (CYP3A4/2C9), potentially increasing the blood levels of drugs like warfarin, phenytoin, and certain statins. Caution is advised.

 

Pregnancy/Breastfeeding: Consult a doctor before use.

 

Summary

Miconazole nitrate is a widely available, effective antifungal agent that disrupts fungal cell membranes. Its primary use is the treatment of common superficial fungal and yeast infections of the skin, vagina, and mouth. Its stable salt form makes it ideal for topical OTC remedies, and it also serves as a useful tool in biochemical research.

 

Unique Advantages For Miconazole Nitrate CAS 22832-87-7 Wholesale

Guaranteed purity

High quality & competitive price

Quality control

Fast feedback

Prompt shipment

 

Our Packages of Miconazole Nitrate CAS 22832-87-7 Bulk

 

As one of chemical wholesale suppliers, we will do our best to meet all the needs of customers.