CAS 115-39-9 Bpb 3′, 3′′, 5′, 5′′-Tetrabromophenolsulfonephthalein

• CAS No.: 115-39-9
• Formula: C19h10br4o5s
• EINECS: 204-086-2
• Classification: Organic Analytical Reagents
• Grade: AR
• Specific Usage: For Synthesis
• Model NO.: SUREST-127
• Content: Standard
• Usage: Laboratory Reagents, Analytical Reagents, Diagnostic Reagents, Teaching Reagents
• Source: Dry Powder
• Habit Appellation: Special Reagent
• Application: Industry, Scientific Research, Health, Environmental Protection, Agriculture
• Property: Organic Reagent
• Shelf Life: 2 Years
• Stock: Available
• Molecular Weight: 669.96
• Color: Pale Yellow
• Melting Point: 273 ºC
• Transport Package: 25kg /Drum
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 3212900000
• Production Capacity: 1000 Tons Yearly

Product Description

115-39-9

Name	115-39-9
Synonyms	BPB; 3',3'',5',5''-Tetrabromophenolsulfonephthalein
Molecular Structure
Molecular Formula	C19H10Br4O5S
Molecular Weight	669.96
CAS Registry Number	115-39-9
EINECS	204-086-2

Properties

Melting point	273 ºC

Chemical Property/Description

Light yellow to brownish yellow powder; Soluble in solution, soluble in  ethanol and benzene, slightly soluble in water (about 0.4g/100ml), maximum absorption wavelength 422nm. It is a pH indicator, in the pH 3.0~4.6 range, the color changes from yellow to blue.It should be stored in a cool and ventilated place, away from fire and heat sources, used as an acid-base indicator, pH discoloration range 3.0 (yellow) ~ 4.6 (purple), to avoid contact with strong oxides.

Main Uses:

1. Used as acid-base indicator, pH discoloration range 3.0 (yellow) ~ 4.6 (purple). It can also be used as an adsorption indicator.

2. It is also used as a reagent for the determination of aliphatic carboxylic acids, sugar alcohols and chlorine-containing pesticides by thin layer chromatography, and as an extraction separating agent for quaternary ammonium cation by spectrophotometry.

3.115-39-9 is widely used in laboratory and industrial production. It can be used to detect whether a substance is acidic, neutral, or basic. 115-39-9 is also used as a pigment in food, rocket fuel and beverages. In addition, it can also be used in the medical and pharmaceutical fields as an indicator or ingredient of drugs.