98% バルククレゾールレッド（ISO工場製）
クレゾールレッド 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.
で 研究室や環境保護産業では、酸塩基指示薬、染料、二色指示薬として使用されています。
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.
中国でクレゾールレッドの製造業者を探しているなら、 今すぐ無料見積もりをお問い合わせください.
中国におけるクレゾールレッドのサプライヤーとして当社を選ぶ理由は何ですか?
1. 迅速な出荷のための安定した在庫
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.
在庫量が500kgを下回りましたら、安定供給できるよう生産スケジュールを組んでまいります。.
2: 高純度は高品質
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.
アプリケーションと仕様
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:
血液学 — 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
製品名: バルククレゾールレッド
CAS番号: 1733-12-6
その他の名前: o-クレゾールレッド、o-クレゾールスルホンフタレイン、クレゾールスルホフタレイン、o-クレゾールスルホンフタレイン。
化学式: C21H18O5S
分子量: 382.4 g/mol
化学名4-[3-(4-ヒドロキシ-3-メチルフェニル)-1,1-ジオキソ-2,1λ6-ベンゾキサチオール-3-イル]-2-メチルフェノール。
HSコード: 2934991000 (スルホラクトンおよびスルフォラクタム-磺内酯および磺内酰胺)
配送オプション: Suitable for air, sea, and rail shipping.
純度または分析: 98% 最小
標準: エンタープライズ標準
利用可能な証明書: ISO
入手可能な文書: COA
供給能力年間50トン
最小注文数量: 1kg
リードタイム: 3~5 days for quantities under 200 KG; 7~8 days for orders under 400 KG.
在庫状況: 400kg以上
配送温度: 室温
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