CAS No. 76-60-8

Molecular Formula: C21H14Br4O5S
Molecular Weight: 698.01
Hazard Symbols: F,Xi,Xn
UN Number: UN 1219 3/PG 2
WGKGermany: 3
PackingGroup: II
HS Code: 29349990

More details are to be found on supplier website

PH Range	3.8----5.4
Maximum absorption wavelength(nm)	440~445
λ 1(PH 3.8)	615~618
λ 2	(PH 5.4)
Mass absorption coefficient,L/cm•g α 1(λ 1PH 3.8)	24~28
α 2(λ 2PH 5.4)	53~58
Ethanol dissolution test	Qualified
Ignition residue(By sulfate)	≤ 0.25
Dry weight loss	≤ 3.0

EINECS:200-972-8
Molecular formula:C21H14Br4O5S

Purity: 99%
Spec 1: Fine yellow crystals
Application: Acid-base indicator, pH color change range 3.8 (yellow) to 5.4 (blue-green)

PH(transition interval) 3.8(yellow green)-5.4(blue)
Maximum absorption wavelength (nm)
λ1（PH 3.8）440~445
λ2 (PH 5.4）615~618
Mass absorption coefficient, L/cm · g
α1(λ1PH 3.8,dry sample) 24~28
α2（λ2PH 5.4,dry sample) 53~58
Ethanol dissolution test pass
Burning residue (calculated as sulfate) ≤0.25
Loss on drying ≤3.0

PH Inhibitor

Density	0.79
Melting point	225℃
Solubility	slightly soluble
Uses	As acid-base indicator

Smile code:
CC1=C(Br)C(O)=C(Br)C=C1C2(C3=CC(Br)=C(O)C(Br)=C3C)C4=CC=CC=C4S(O2)(=O)=O
MDL Number:
MFCD00005874
Purity :
Ind
Available in stock:
5125 g