Description

Btb CAS NO 34722-90-2 is a high-purity biochemical reagent widely recognized as a pH indicator and a vital component in various diagnostic and analytical formulations. Its precise chemical properties make it essential for applications requiring accurate pH measurement and colorimetric detection. This compound is particularly valuable for research institutions, diagnostic kit manufacturers, and quality control laboratories in the biotechnology and pharmaceutical sectors.

Application

• pH Indicator in Culture Media: Used in microbiological and cell culture media to provide a visual indication of pH changes.
• Diagnostic Reagent: A key component in clinical diagnostic kits and strips for urinalysis and other biochemical tests.
• Research & Development: Employed in life science research for enzyme assays, protein studies, and buffer system development.
• Quality Control Testing: Utilized in industrial and pharmaceutical QC labs for titration endpoints and process monitoring.
• Educational Kits: Incorporated into chemistry and biology educational kits for classroom demonstrations of acid-base reactions.

Basic Information

Item	Details
Product Name	Btb
CAS No.	34722-90-2
Molecular Formula	C27H28Br2O5S
Molecular Weight	624.38 g/mol
Synonyms	Bromothymol Blue; 3',3''-Dibromothymolsulfonephthalein; Dibromothymolsulfonephthalein; BTB; Bromthymol Blue; NSC 6173; Bromothymol Blue Sodium Salt (derivative); Acid Blue 93 (related class)
EINECS	Contact for details

Quality Control

Our Btb CAS NO 34722-90-2 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the high standards required for sensitive applications. Certificates of Analysis (COA) documenting specifications and test results are available upon request to support your quality and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Green to brown-green crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
pH Transition Range	6.0 (yellow) to 7.6 (blue)
Solubility	Soluble in ethanol, alkali; slightly soluble in water

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.