Description

Dibromosulphthalein CAS NO 17199-35-8 is a synthetic, brominated sulfonephthalein derivative used primarily as a diagnostic agent and a key intermediate in specialized chemical syntheses. Its value lies in its specific chemical reactivity and utility in liver function testing and research applications. This compound is essential for pharmaceutical manufacturers, diagnostic kit producers, and research institutions focused on hepatology and dye chemistry.

Application

• Diagnostic Agent: Primarily used in liver function tests, such as the Bromosulphthalein (BSP) test, to assess hepatic excretory function.
• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of more complex diagnostic dyes and contrast agents.
• Biochemical Research: Employed in laboratory studies investigating liver metabolism, biliary excretion pathways, and protein binding.
• Dye & Staining Applications: Used in the development of specialized histological stains and pH indicators due to its chromogenic properties.
• Analytical Chemistry: Can function as a standard or reagent in chromatographic analysis and method development for related compounds.

Basic Information

Item	Detail
Product Name	Dibromosulphthalein
CAS No.	17199-35-8
Molecular Formula	C20H10Br2O10S2
Molecular Weight	666.23 g/mol
Synonyms	Bromosulfophthalein; Dibromosulfophthalein; BSP; Sulfobromophthalein; 3,3'-Dibromophenolsulfonphthalein; 4,5,6,7-Tetrabromo-3',3''-disulfophenolphthalein Disodium Salt (common salt form); Bromthalein; DBSP
EINECS	Contact for details

Quality Control

Our Dibromosulphthalein is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing including HPLC for purity, identity confirmation by IR spectroscopy, and residual solvent analysis to ensure it meets exacting standards for diagnostic and research use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Light pink to reddish-brown powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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