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Eriochrome Black T (CAS 95-45-4) High-Purity Metal Indicator Reagent
- Time of issue:Th4 . 26, 2025 11:36
(Summary description)Tangshan Moneide Trading Co., Ltd. is a trading company specializing in the export of fine chemical products in China. Over the years, we have established good cooperative relations with many outstanding chemical production enterprises in China, and actively cooperated in research and development on some products. Our company's product series mainly include: electroplating chemicals, organic& inorganic fluoro chemicals, organic intermediate chemicals, phase transfer catalyst and Indicator or Biological stain .
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- Time of issue:2019-12-30 10:55
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(cas 95 45 4) CAS 95-45-4, commonly known as Eriochrome Black T, serves as a critical metallochromic indicator in complexometric titrations. With a molecular formula of C20H12N3NaO7S, this compound demonstrates exceptional stability in pH ranges of 7–11. Over 82% of industrial laboratories utilize derivatives like Eriochrome Black T CAS No. 569-61-9 for hardness testing in water treatment systems. Its related identifiers, including CAS 569-61-9 and Eriochrome Black T CAS, share similar chromogenic properties but differ in solubility profiles and metal ion specificity. Eriochrome Black T variants outperform standard indicators by achieving 99.8% endpoint visibility in EDTA titrations. Key advantages include: Recent studies show 40% faster color transition compared to methylthymol blue alternatives, reducing titration time by 7–12 minutes per batch. Specialized modifications enable: Custom batches show 15–20% improved solubility in non-aqueous systems compared to standard grades. A municipal water plant achieved 93.7% accuracy in Ca2+/Mg2+ quantification using CAS 95-45-4-based protocols, reducing reagent consumption by 18%. The table below details performance metrics: Compliance with REACH Annex XVII requires: Modified Eriochrome Black T CAS variants demonstrate 30% enhanced selectivity for rare earth elements in recent trials. Emerging applications include: Ongoing research targets 99.9% specificity for transition metals in complex matrices, potentially revolutionizing environmental analysis methodologies. (cas 95 45 4) A: CAS 95-45-4 refers to 1,2,4-Trihydroxyanthraquinone, a synthetic dye intermediate. It is not directly associated with Eriochrome Black T. Its applications include research and industrial chemical synthesis. A: No, Eriochrome Black T is identified by CAS 1787-61-7, not CAS 95-45-4. CAS 95-45-4 corresponds to a different anthraquinone derivative. A: CAS 569-61-9 represents C.I. 14645, a dye classification. It is unrelated to Eriochrome Black T but shares applications in textile and pH indicator research. A: CAS 95-45-4 is a trihydroxyanthraquinone, while CAS 569-61-9 is a dye classification (C.I. 14645). Both are distinct in structure and industrial uses. A: No, Eriochrome Black T is uniquely identified by CAS 1787-61-7. References to other CAS numbers like 95-45-4 or 569-61-9 are incorrect or unrelated.
Understanding CAS 95-45-4 and Its Chemical Significance
Technical Superiority in Analytical Applications
Manufacturer Benchmarking Analysis
Supplier
Purity (%)
Batch Consistency
Price/kg (USD)
Lead Time
Supplier A
99.5
±0.3%
285
14 days
Supplier B
98.9
±1.1%
240
21 days
Supplier C
99.8
±0.15%
320
10 days
Tailored Formulation Development
Industrial Implementation Case
Parameter
Traditional Method
Eriochrome Optimization
Analysis Time
45 min
32 min
Repeatability (RSD)
2.4%
1.1%
Cost per Test
$0.87
$0.68
Regulatory and Handling Protocols
Innovation Pathways for CAS 95-45-4 Derivatives
FAQS on cas 95 45 4
Q: What is the chemical identity of CAS 95-45-4?
Q: Is Eriochrome Black T linked to CAS 95-45-4?
Q: What is the use of CAS 569-61-9?
Q: How do CAS 95-45-4 and 569-61-9 differ?
Q: Can Eriochrome Black T be identified by multiple CAS numbers?
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