Oxidase Reagent - BioReagent

Cat. No.: O1523348

GRADE & PURITY BioReagent

Storage

Room temperature

Shipped In

Normal

Visão geral

For bacterial oxidase test.

Specifications

Especificações e pureza

BioReagent

Condições de armazenamento de armazenamento

Room temperature

Enviado em

Normal

Grau

BioReagent

Product Line

Produtos biológicos

Application Protocols

No item-specific, validated protocols are supplied in the product data for SKU O1523348.

Guidance:

• Follow your institution’s SOPs for oxidase testing and consult standard microbiology references for method details, controls, and interpretation criteria.
• Refer to the product’s CoA/SDS and label for any formulation-specific instructions (e.g., whether the reagent is ready-to-use, concentrated, or requires impregnation of test strips).

Research use only: This product is intended strictly for laboratory research applications.

Biological Roles

This product is a laboratory reagent used to detect oxidase activity; it is not a biological macromolecule. No intrinsic biological role is assigned to the reagent itself for this item.

General/literature context (for the assay principle):

• Cytochrome c oxidase (Complex IV) is a terminal oxidase in many aerobic bacteria’s electron transport chains. It catalyzes the transfer of electrons from cytochrome c to oxygen, forming water and contributing to the proton motive force.
• Oxidase reagents provide reduced artificial electron donors (e.g., substituted p-phenylenediamines) that, in the presence of cytochrome c oxidase and oxygen, are rapidly oxidized to colored species. The color change is exploited as a rapid screen of respiratory chain composition in microbial research.
• Oxidase-positive organisms often rely on cytochrome c oxidases (cbb3- or aa3-type), while oxidase-negative organisms lack these enzymes or possess alternative terminal oxidases that do not oxidize the reagent under test conditions.

Use limitations:

• Research use only (per product data). The reagent does not confer metabolic activity; it serves solely as a chemical probe in qualitative assays. Interpretation should be made alongside controls and complementary tests.

Buffer Applications

This product is an oxidase detection reagent and is not a buffering system. Therefore, typical buffer preparation, buffering capacity, and pH range guidance do not apply.

• If a working solution requires dilution or reconstitution, follow the item-specific CoA/Spec Sheet for solvent, pH, and concentration. These details are not specified for this item.
• For assay performance, avoid strong buffers or media components known to interfere with oxidase color development (literature), and adhere to your laboratory’s validated SOPs.

Green Alternatives

Because “Oxidase Reagent” denotes a functional formulation rather than a single solvent or commodity chemical, green chemistry considerations focus on solvent choice, stabilization, and waste minimization. No item-specific composition is provided here.

General/literature guidance (not item-specific):

• Solvent base: Prefer water or aqueous ethanol over higher-toxicity solvents. If alcoholic formulations are used, ethanol is generally preferred over isopropanol or methanol for lower toxicity and broader institutional acceptance.
• Stabilization: Formulations that resist auto-oxidation extend shelf life and reduce waste. Using minimal, benign stabilizers and opaque/light-protective packaging can reduce degradation without introducing hazardous additives.
• Packaging: Supply in volumes aligned with consumption to reduce expired waste. Consider recyclable containers and minimize secondary packaging.
• Process improvements: Use dropper tips or single-use ampoules to avoid repeated air exposure and extend working life, thereby decreasing the frequency of disposal.

Illustrative comparison (literature; not item-specific):

• Aqueous medium: Non-flammable, lower VOC emissions, generally preferable for EHS; may have shorter open-bottle life due to background oxidation.
• Ethanol medium: Faster drying, good wetting, but flammable and contributes to VOC load; manage with closed dispensing and proper storage.

Always evaluate the actual SDS/CoA for SKU O1523348 to align green choices with the supplied formulation.

Pharmaceutical Uses

No pharmaceutical or clinical use is claimed. This product is designated for research use only.

General notes (context; not item-specific):

• Oxidase reagents are not pharmaceutical excipients and are not formulated for human or veterinary administration.
• In manufacturing QC or environmental monitoring research, oxidase tests may be part of non-clinical microbial characterization workflows; such uses require internal validation and are outside pharmacopeial monographs.

For any regulated application, consult your quality unit and review the lot-specific CoA/SDS to determine suitability and required validation steps.

Physical Properties

Item-specific physicochemical specifications are not provided for this catalog entry.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Boiling point, melting point, density, refractive index: Not specified for this item; refer to CoA/Spec Sheet.
• Solubility: Not specified for this item; refer to CoA/Spec Sheet.
• pKa/logP/UV cutoff: Not specified for this item; refer to CoA/Spec Sheet.

General/literature context (not item-specific):

• Oxidase reagents for microbiological testing are typically supplied as ready-to-use solutions or concentrates in water, ethanol, or other miscible solvents. Many aromatic diamine salts (e.g., TMPD dihydrochloride) are water-soluble and readily dissolve to give clear, pale-colored solutions that darken upon air exposure/oxidation.
• These solutions are intentionally low viscosity for rapid wetting of filter paper, swabs, or colony surfaces.
• The working solutions are usually used at room temperature and are air- and light-sensitive, gradually developing background color with prolonged exposure.

Practical note (general): minimize headspace oxygen, limit light exposure, and prepare small aliquots to reduce auto-oxidation. Always defer to the product’s CoA/SDS for definitive properties and handling specific to SKU O1523348.

Quality and Grades

• Grade/Purity (item-specific): BioReagent.

What BioReagent grade generally implies (context, not a specification):

• Intended for research and laboratory workflows in the life sciences (e.g., microbiology, cell biology). Emphasis is typically placed on functional performance, low background, and batch-to-batch consistency rather than clinical/diagnostic use.
• May include additional QC relevant to biological assays (e.g., activity response, background color formation rate, or microbial limits), depending on supplier’s internal specifications. Exact acceptance criteria for this SKU are not listed here.

Stabilizers and formulation notes:

• Not specified for this item; refer to CoA/Spec Sheet. Many oxidase reagents incorporate acid salts or antioxidants to moderate auto-oxidation (literature), but this cannot be assumed for the present lot.

Documentation and lot control:

• For regulated labs, request the CoA/Spec Sheet for: composition or active ingredient identity, concentration (if solution), acceptance tests, recommended shelf life, and storage constraints. Retain lot-specific documents for method validation and audit trails.

Use scope:

• Research use only (per product data). Not intended for human or animal diagnostic, therapeutic, or household use.

Reaction and Applications

Item-specific application claims are not listed beyond the product name. The following describes typical uses of oxidase reagents in research laboratories (literature; not item-specific):

• Bacterial oxidase test: Rapid qualitative detection of cytochrome c oxidase activity in microorganisms. The reagent (often an aromatic diamine salt) serves as an artificial electron donor that is oxidized by cytochrome c oxidase, producing a transient colored radical or indophenol dye. A rapid blue to purple coloration within seconds is interpreted as a positive response under standard conditions.
• Microbiological differentiation: Helps distinguish oxidase-positive genera (e.g., many non-fermenting Gram-negative rods) from oxidase-negative ones (e.g., Enterobacterales), supporting organism identification in research settings.
• Surface/strip testing: Applied to filter paper strips, swabs, or directly to isolated colonies grown on non-inhibitory media to avoid false reactions.

Good laboratory practice (general):

• Use fresh colonies (18–24 h), avoid media containing strong oxidants/reductants or dyes that may confound results, and read results promptly to avoid false positives from slow air-oxidation.
• Employ appropriate positive/negative controls with each session to verify reagent responsiveness and background behavior.

Note: Consult internal SOPs and the specific CoA/SDS for SKU O1523348 to confirm suitability and any formulation-specific instructions.

Reaction Conditions

Item-specific operating parameters are not provided for this listing.

General/literature guidance for oxidase testing (not item-specific):

• Temperature: Ambient laboratory temperature (approximately 20–25°C) is standard. Extreme temperatures can affect reaction rate and color stability.
• Atmosphere: Ambient air provides oxygen required for the color reaction; excessive exposure promotes background oxidation of unused reagent.
• Time window: Color development for a true positive is typically rapid (seconds); interpretations made after prolonged standing can yield false positives due to air-oxidation.
• Matrix considerations: Perform on fresh, well-isolated colonies grown on media without interfering dyes or strong reducing/oxidizing agents. Moisture content of colonies can influence spreading and intensity.
• Controls: Include known oxidase-positive and oxidase-negative control organisms to verify reagent responsiveness and to establish your laboratory’s read-time cutoff.

Caveats:

• Some organisms produce weak/delayed reactions; adhere to validated SOPs for read times and result interpretation.
• Disposal: Treat used strips/swabs and residual reagent as chemical/biological waste per local regulations.

Refer to the item’s CoA/SDS for any formulation-specific instructions (e.g., whether the product is supplied as a solution or concentrate) before establishing laboratory conditions.

Safety and Handling

• GHS classification, signal word, hazard statements, pictograms: Not specified for this item; refer to SDS.
• Storage conditions (item-specific): Room temperature (per product data). Avoid strong oxidizers/reducers and sources of ignition as a general precaution for redox-active organics; segregate from incompatible materials per SDS.

General safety guidance (not item-specific; defer to SDS):

• PPE: Use laboratory coat, safety glasses, and appropriate chemical-resistant gloves. Handle in a well-ventilated area or fume hood to limit exposure to vapors/aerosols.
• Sensitization/irritation: Aromatic diamine-based redox indicators can be skin/eye irritants and may stain tissues/materials. Avoid contact; wash promptly after use.
• Oxidation/sensitivity: Many oxidase reagents are air- and light-sensitive; they can slowly oxidize, darken, and generate colored species. Keep containers tightly closed and protected from light.
• First aid overview: In case of skin contact, wash with soap and water. For eye contact, rinse cautiously with water for several minutes and seek medical attention. If inhaled, move to fresh air. If ingested, rinse mouth and seek medical advice. Always follow the SDS instructions.
• Spills/disposal: Absorb small spills with inert material; dispose according to institutional and local regulations. Prevent release to drains unless permitted.

Always consult the current SDS for SKU O1523348 for authoritative hazard, incompatibility, and emergency measures.

Solvent Selection

This product is supplied as an “Oxidase Reagent” formulation; item-specific solvent/base medium is not disclosed here.

• Item-specific solvent: Not specified for this item; refer to CoA/Spec Sheet.

General/literature guidance (not item-specific):

• Common media for oxidase reagents include water or aqueous alcohols (e.g., ethanol), chosen for rapid wetting of colony surfaces and compatibility with filter paper swabs or direct plate testing.
• Desired attributes: fast evaporation without residue, low inherent color, and minimal background oxidation rate.
• Compatibility: Solutions should be fully miscible with water to avoid phase separation on moist colonies or swabs.

When to choose an aqueous vs. alcoholic medium (literature):

• Aqueous: maximizes biocompatibility with wet colony surfaces and reduces flammability risks; may have slightly higher background over time.
• Alcoholic: accelerates drying and can improve wetting on hydrophobic surfaces; introduces flammability considerations and may desiccate colonies.

Practical notes:

• Use fresh or recently opened aliquots to minimize air-oxidation background. Cap immediately after dispensing. If working on paper strips, wet uniformly but avoid flooding.

Always verify the supplied medium and any solvent restrictions in the CoA/SDS for SKU O1523348.

Storage and Reconstitution

• Storage conditions (item-specific): Room temperature (per product data). Shipped under normal conditions.
• Reconstitution: Not specified for this item; refer to CoA/Spec Sheet.
• Concentration/formulation: Not specified for this item; refer to CoA/Spec Sheet.

General/literature advice (not item-specific):

• Protect from light and minimize air exposure to reduce auto-oxidation and background color formation. Store tightly capped. If supplied as a solution, consider aliquoting to limit headspace and repeated opening.
• If supplied as a solid or tablet, prepare fresh solutions as directed by the supplier, using high-purity water or the recommended solvent; label with preparation date and discard per your lab’s stability policy.
• Do not freeze unless explicitly recommended by the supplier. Avoid elevated temperatures and direct sunlight.

Shelf life and stability are formulation-dependent; consult the lot-specific CoA and label for expiry and any special instructions applicable to SKU O1523348.

Structure and Identity

Item-specific identifiers are not provided for this product entry and this reagent is typically a formulation rather than a single defined compound.

• SKU: O1523348
• Product name: Oxidase Reagent
• CAS: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
• SMILES: Not specified for this item; refer to CoA/Spec Sheet.
• InChIKey: Not specified for this item; refer to CoA/Spec Sheet.

General/literature context (for clarity; not item-specific):

• “Oxidase reagents” used for bacterial oxidase testing are commonly solutions of redox-active aromatic diamines (e.g., N,N,N′,N′-tetramethyl-p-phenylenediamine dihydrochloride [TMPD·2HCl] or N,N-dimethyl-p-phenylenediamine) that undergo rapid color change upon oxidation by cytochrome c oxidase. These are formulations, not single-entity structures.
• Structural features (typical, literature): para-phenylenediamine cores with dialkylamino substituents act as electron donors; in the presence of an oxidase and oxygen, they form colored radical cations/indophenols.

Important: The actual composition/active ingredient(s) of this specific Oxidase Reagent are not disclosed here. Consult the product label and CoA/SDS for definitive identity and composition.

Synthetic Utility

This product is intended as a functional assay reagent rather than a synthetic building block, catalyst, or solvent. As such, it is not typically employed in organic synthesis workflows.

General/literature remarks (not item-specific):

• The redox-active aromatic diamines commonly used in oxidase reagents can, in principle, participate in oxidation/reduction dye chemistry (e.g., indophenol dye formation), but such transformations are analytical in nature rather than preparative synthetic steps.
• If your research aims to adapt colorimetric redox indicators to monitor synthetic reaction progress, selection should be based on solvent compatibility, potential side reactions, and spectral properties. Those considerations are outside the intended scope of this reagent listing.

Conclusion: For synthetic applications, select reagents with defined structure, purity, and reactivity tailored to the transformation of interest. Use this Oxidase Reagent for its designed role in oxidase activity detection.

Target Specificity

Not applicable. This product is a chemical reagent, not an antibody or affinity reagent. No antigen/epitope, clone, isotype, or species reactivity applies.