Thermo Scientific Chemicals Bromothymol Blue, ACS

Description

CAS: 76-59-5 | C27H28Br2O5S | 624.384 g/mol

Bromothymol Blue is a pH indicator used for measuring pH around 7 in pools and fish tanks. It operates in the pH range 6.0 to 7.6 due to the presence of an electron withdrawing and donating groups like bromine atoms and alkyl substitutents respectively. In the laboratory, it is used as a biological slide stain as well as used in obstetrics for detecting premature rupture of membranes. Further, it is used for the observation of photosynthetic activities and a respiratory indicator. In addition to this, it is used to define cell walls or nuclei under the microscope.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 76-59-5
• Molecular Formula: C27H28Br2O5S
• Molecular Weight (g/mol): 624.384
• MDL Number: MFCD00005872
• InChI Key: NUHCTOLBWMJMLX-UHFFFAOYSA-N
• PubChem CID: 6450
• ChEBI: CHEBI:86155
• IUPAC Name: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
• SMILES: CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)C(C)C)C(C)C)O)Br

• Melting Point: 200°C to 202°C
• Beilstein: 373934
• Merck Index: 14,1445
• Solubility Information: Soluble in alcohol and aqueous solutions of alkali; sparingly soluble in waterSoluble in ethanol,ether and alkalis; Slightly soluble in water.
• Formula Weight: 624.39
• Grade: ACS
• Color: Brown to Red
• Quantity: 5 g
• Physical Form: Crystalline
• Chemical Name or Material: Bromothymol Blue

Safety and Handling

EINECSNumber	200-971-2
RTECSNumber	SJ450000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only