Bromocresol green Cas 76-60-8

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Chemical Name: Bromocresol green
CAS No.: 76-60-8
Molecular Formula: C21H14Br4O5S
Molecular Weight: 698.01
Assay: ≥98.5%
Samples: Available

Typical Properties

Item	Specifications	Results
Assay (%)	≥98.5	98.9
PH Color change interval	3.8 (yellow-green)-5.4 (blue)	Pass test
Maximum absorption wavelength (mm)	λ₁(PH3.8)440-445	442
Maximum absorption wavelength (mm)	λ₂(PH5.4) 615-618	616
Mass absorption coefficient, L/(cm.g)	α₁(λ₁, PH3.8 dry sample) 24-28	25
Mass absorption coefficient, L/(cm.g)	α₂(λ₁, PH5.4 dry sample) 53-58	55
Ethanol dissolved test	Pass test	Pass test
Loss on drying	≤3.0	2.1
Residue on ignition (as SO₄)%	≤0.25	0.25
Conclusion	The results conforms with HG/T4017-2008 indicator