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Chemical Name: Thymol Blue
CAS No.: 76-61-9
Molecular Fomula: C27H30O5S
Molecular weight: 466.59
Appearance: Dark green to dark brown solid
Assay: ≥99%

Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

Thymol Blue CAS 76-61-9: Comprehensive User Guide

Table of Contents

1. Product Overview & Specifications

Thymol Blue (CAS 76-61-9) is a pH-sensitive triphenylmethane dye widely used as a biochemical indicator. Below is a technical comparison with similar indicators:

Parameter Thymol Blue Phenolphthalein Bromocresol Green
pH Range 1.2–2.8 (red-yellow)
8.0–9.6 (yellow-blue)		 8.2–10.0 3.8–5.4
Molecular Weight 466.59 g/mol 318.32 g/mol 698.02 g/mol

2. Key Applications

2.1 Acid-Base Titrations

Thymol Blue serves as a dual-range indicator for strong acid-strong base (1st transition) and weak acid-strong base (2nd transition) titrations.

2.2 Biochemical Analysis

Used in cell culture media preparation and protein electrophoresis due to its non-toxic nature at low concentrations.

3. Usage Guidelines

3.1 Standard Solution Preparation

Dissolve 0.1g Thymol Blue in 21.5ml 0.01M NaOH + 250ml ethanol. Filter before use for optimal clarity.

4. Case Studies

4.1 Wastewater pH Monitoring

A chemical plant achieved 0.05pH unit accuracy using Thymol Blue in pretreatment processes, reducing sensor calibration costs by 40%.

5. Client Success Stories

5.1 PharmaTech Solutions (Germany)

Implemented Thymol Blue in QC labs for injectable medications, reducing false-positive results by 22% through improved endpoint detection.

5.2 University of Melbourne (Australia)

Chemistry Department reported 98% student success rate in titration experiments after switching to Thymol Blue-based protocols.

6. Contact for Inquiries

Email: info@vivalr.com
Phone: (86) 15866781826

Request bulk pricing or SDS documentation:

  • Custom concentration formulations
  • GMP-grade batches
  • Technical support

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Drug impurities to intermediates. Years of expertise.

Experience in the synthesis of complex compounds derived from American technology
Focus on the synthesis of difficult compounds
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A 70+ R&D team led by Chinese and foreign doctors
150 pieces (sets) of R&D equipment, 120+ fume hoods
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Through more than ten years of continuous technological innovation and experience accumulation, the team's R&D personnel have established a complete quality management system for CATO, and have successively obtained ISO9001, ISO17034, CNAS and other international certifications.
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More than 150 sets of equipment to ensure quality.

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Over 1000 cases. Synthesize complex compounds.

Currently, CATO serves more than 500 pharmaceutical companies, biotechnology and other companies around the world. Project types cover the entire cycle from pre-clinical to commercialization stages. As of 2020, CATO has delivered more than 1,000 projects in total.
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FAQ

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Delivery time

Under normal circumstances, all items are in stock and will be shipped before 4 o'clock on the same day. Some products are produced to order, depending on the workshop situation and production schedule.

What is the production capacity?

At present, the company's workshop production equipment is mainly based on laboratories and pilot lines, with a maximum daily production capacity of 1.5 tons.

Can additional test indicators be added?

We can provide moisture, UV, IR, HNMR, CNMR, two-dimensional nuclear magnetic spectroscopy, optical rotation detection, elemental analysis, TGA analysis and residue analysis and other related tests to support personalized needs.

Technical direction

In the early stage, our company mainly engaged in drug impurity synthesis and standard product production, with core technologies in chirality, fluorine chemistry, and heterocycles.

Why Chem-iso’s delivery rate is guaranteed to be 99.99%

5000+

square meter R&D center

150+

China(set) of R&D equipment

150+

Fume hood

180+

R&D team

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