98% Bulk Cresol Red von ISO Factory
Kresolrot is a greenish powder, ranging from green to dark green or brown-red, slightly soluble in water and very soluble in ethanol but insoluble in acetone or benzene.
Its color changes from orange to yellow between pH 0.2 and 1.8 and from yellow to purple between pH 7.0 and 8.8.
In In Laboren und der Umweltschutzindustrie wird es als Säure-Basen-Indikator, Farbstoff und Zweifarbenindikator verwendet.
Generally, people dilute it to a 0.1% elution or to a 0.04% sodium salt aqueous solution as an indicator.
For example, it is used as a pH-sensitive indicator dye in nano-optical urea biosensor membranes and in heteronuclear-structured fiber-optic pH sensors.
Wenn Sie nach Kresolrot-Herstellern in China suchen, Bitte kontaktieren Sie uns jetzt für ein kostenloses Angebot.
Warum sollten Sie uns als Ihren Kresolrot-Lieferanten in China wählen?
1. Fester Lagerbestand für sofortige Lieferung
As China’s largest manufacturer of cresol red, we maintain a rotating stock of over 1,000 kg, ready to fulfill urgent orders from our regular and new customers.
Sobald die Lagermenge unter 500 kg fällt, erstellen wir einen Produktionsplan, um eine stabile Versorgung sicherzustellen.
2: Hohe Reinheit bedeutet hohe Qualität
We adhere to the ISO 9001 guidelines in our production, and our purity is at least 98%.
Due to our strict adherence to our production procedures, our purity consistently exceeds 98% as a fine powder. Ask us for a sample to verify.
Anwendungen und Spezifikationen
Download technischer Dokumente
Analytical Chemistry & pH Indicator (Largest Segment)
Cresol Red is one of the most widely used pH indicators in analytical chemistry:
Routine pH assessments — in microbial culture media preparations
Titrations — acid-base titrations requiring precise endpoint detection
Colorimetric pH sensors — monitoring dissolved CO₂ in natural waters
Quality control — in pharmaceutical and food manufacturing
Buffer preparation — verifying the pH of buffer solutions
Molecular Biology & Electrophoresis (High-Growth Segment)
Cresol Red has become an essential tool in molecular biology laboratories:
Electrophoresis tracking dye — in DNA, RNA (agarose), and protein (polyacrylamide) electrophoresis
Apparent molecular size — in agarose, Cresol Red runs with an apparent molecular size of approximately 125 bp DNA
PCR reagent systems — suitable constituents of PCR reagent systems
Taq polymerase compatibility — Cresol Red does not inhibit Taq polymerase
Urease detection — commonly used with lead acetate for the detection of urease after PAGE
Diagnostic & Clinical Applications
Cresol Red is widely used in diagnostic assay manufacturing:
Hämatologie — diagnostic assays and hematological testing
Histology — tissue staining and histological analysis
Medical diagnostics — pH-based diagnostic tests
Research use only (RUO) — in vitro diagnostic research
Food & Beverage Analysis
Cresol Red is used in food and beverage quality control:
pH testing — in food and beverage manufacturing
Quality assurance — monitoring acidity and alkalinity
Beverage analysis — carbonated beverage pH monitoring
Environmental & Water Quality Monitoring
Cresol Red plays a role in environmental analysis:
Water quality monitoring — pH assessment in natural waters
Colorimetric sensors — monitoring dissolved CO₂ in natural water sources
Environmental research — water quality and pollution studies
Produktname: Kresolrot in großen Mengen
CAS-Nummer: 1733-12-6
Andere Namen: O-Kresolrot, O-Kresolsulfonphthalein, Kresolsulfophthalein, o-Kresolsulfonphthalein.
Chemische Formel: C21H18O5S
Molekulargewicht: 382,4 g/mol
Chemischer Name: 4-[3-(4-Hydroxy-3-methylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-2-methylphenol.
HS-Code: 2934991000 (Sulfolacton und Sulfolactam-磺内酯及磺内酰胺)
Versandoptionen: Suitable for air, sea, and rail shipping.
Reinheit oder Gehalt: 98% als Min
Normen: Unternehmensstandards
Zertifikate verfügbar: ISO
Verfügbare Dokumente: Echtheitszertifikat
Lieferfähigkeit: 50 Tonnen pro Jahr
Mindestbestellmenge: 1 KG
Lieferzeit: 3~5 days for quantities under 200 KG; 7~8 days for orders under 400 KG.
Lagerstatus: Über 400 kg
Versandtemperatur: Raumtemperatur
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