Bromothymol Blue (CAS 76-59-5)

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Synonym:	BTB
Application:	A pH indicator for weak acids and bases
CAS Number:	76-59-5
Molecular Weight:	624.38
Molecular Formula:	C₂₇H₂₈Br₂O₅S

Ordering Information

Product Name	Catalog #	Unit	Price	Qty	Add
Bromothymol Blue	sc-206047	5 g	$22
Bromothymol Blue	sc-206047A	25 g	$76

Description

Bromothymol Blue is a pH indicator for weak acids and bases. The chemical is also used for observing photosynthetic activities or respiratory indicators and possibly utilized as a biological slide stain for detecting nuclei or cell walls. Approximate pH range for color change is 6.0-7.6 with the color shifting from yellow to blue.

Technical Information

Appearance:	Red to brown powder
Physical State:	Solid
Solubility:	Soluble in water (Sparingly soluble), ethanol, ether, and aqueous solutions of alkalis.
Storage:	Store at -20° C
Melting Point:	200-202 °C (lit.)
Boiling Point:	614.26 °C at 760 mmHg (Predicted)
Density:	1.54 g/cm³ (Predicted)
Refractive Index:	n²⁰_D 1.63 (Predicted)

Safety and Reference Information

WGK Germany:	3
RTECS:	SJ7450000
PubChem CID:	6450
Merck Index:	14: 1445
MDL Number:	MFCD00005872
EC Number:	200-971-2
Beilstein Registry:	373934
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

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

SDS

Datasheet/SDS