Methyl Violet
CAS:603-47-4 Product spec:MF: C24H27N3.HCl
PH indicator range: 0.15(yellow)-3.2(purple)
Methanol-soluble test: qualified
Residue on ignition(as sulfate):1.0%max
Loss on drying:7.5% max
Fluorescein
CAS:2321-07-5 Product spec:MF: C20H12O5
MW: 332.31
Maximum absorption wave-length λ(PH8.0):490-493 nm
Mass-absorption coefficient λ(PH8.0)Lcm•g: 200 min.
Ethanol soluble test: qualified
Sensitive test: qualified
Loss on drying: 5.0%ma..
Fluorescein disodium salt
CAS:518-47-8 Product spec:Molecular formula: C20H10Na2O5
Molecular weight: 376.28
Appearance: salmon pink powder
Water soluble test: qualified
Bromine sensitivity test: qualified
Water: 7.0%max
Wright's stain
CAS:68988-92-1 Product spec:68988-92-1
Molecular Formula: C36H27N3O5Br4S.
Biological staining test: qualified
o-Cresolphthalein Complexone
CAS:2411-89-4 Product spec:2411-89-4
Molecular Formula: C32H32N2O12
Molecular Weight: 636.61
Assay(spectrophotometric method ): 80%min
Sensitivity: Qualified
Water soluble test: Qualified
Residue on ignition(as sulfate ): 1.0%
Or..
Xylenol Orange sodium salt
CAS:63721-83-5 Product spec:CAS No: 63721-83-5
Molecular Formula: C31H31N2NaO13S
Molecular Weight: 760.65
Sensitivity test: qualified
Residue on ignition(as sulfate): 30.0---35.0%
Loss on drying : 15.0%max
Dissociate o-cresol sulfonephthalei..
Methyl Red sodium salt
CAS:845-10-3 Product spec:MF: C15H14N3NaO2
Molecular Weight: 291.29
PH indicator range: 4.5(red)-6.2(yellow)
Residue on ignition(as sulfate): 20.5-24.0%
Methyl orange
CAS:547-58-0 Product spec:Molecular Formula: C14H14N3NaO3S
Molecular Weight: 327.33
Water-soluble test: qualified
Sensitive test: qualified
PH Color Change Range: 3.0(orange)-4.4(yellow)
Residue on ignition(as sulfate): 18.5---22.0%
Oxides:qualified
Semixylenol Orange
CAS:19329-67-0 Product spec:MF: C26H25NO9S
Product name: Semixylenol Orange
CAS No :19329-67-0
MF: C26H25NO9S