- Min.Order :1 Kilogram
- Purity: 99%
- Payment Terms : L/C,T/T
Keywords
o-Cresolsulfonphthalein Cresol Red CAS:1733-12-6
Quick Details
- Appearance:brownish red crystal
- Application:used as pH indicator.
- PackAge: 25kgs/drum
- ProductionCapacity:2000|Metric Ton|Year
- Storage:Store in cool and dry place, away from sun light.
- Transportation:By sea or by air
Superiority:
|
Chemical Name |
Cresol Red |
|
Another name |
o-Cresolsulfonphthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-methylphenol) S,S-dioxide |
|
CAS No. |
1733-12-6 |
|
Molecular formula |
C21H18O5S |
|
EINECS No. |
217-064-2 |
|
Molecular weight |
382.43 |
Details:
Appearance: brownish red crystal
Assay: 80% min.
Max Absorption wavelength,
λ1(PH6.5): 432~436 nm
λ2(PH8.5): 571~574 nm
Mass absorption coefficient L/(cm·g)
α1〔λ1(PH6.5)〕49-67 ,
α2〔λ2(PH8.5)〕100-132
Solubility in Ethanol: Pass
Loss on drying: 0.2% max
Residue on ignition (sulfate):3.0%max
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