Audited Supplier
TNN009
17372-87-1
C20h6br4na2o5
Biochemical Reagents
AR
For Biological Purpose
Standard
Analytical Reagents
Dry Powder
Fine Chemicals
Industry, Scientific Research
Biochemical Reagent
45380
Available
Cool
>12months
TNN
25kg Drum
Ind Grade
China
Product Description
Product Name: Eosin Y (Acid Red 87)
CAS No.: 17372-87-1
Molecular Formula: C20H6Br4Na2O5
C.I. No.: 45380
Standard: Ind Grade
Purity:70%-80%;
Purity:85%-92%;
Purity:≥92%;
Certificate: ISO
CAS No.: 17372-87-1
Molecular Formula: C20H6Br4Na2O5
C.I. No.: 45380
Standard: Ind Grade
Purity:70%-80%;
Purity:85%-92%;
Purity:≥92%;
Certificate: ISO
Function of Eosin Y
Red crystal or brownish red powder, soluble in water; slightly soluble in ethanol; insoluble in ether, concentrated aqueous solution is dark brown red, dilute solution is orange with green fluorescence. The ethanol solution has a strong green fluorescence. Low toxicity. Used as adsorption indicator, biological dye.
Application of Eosin Y
Used as a biological stain. Also used as an adsorption indicator for precipitation titration determination of Br-, I-, SCN-, MoO, Ag , and the like. Used as a color developer for the determination of Ag , Pb2 , Mn2 , Zn2 , etc. by fluorescence
spectrophotometry.
spectrophotometry.
| Eosin Y (Acid Red 87) | |
| Item | Standard |
Content(C20H6O5Br4Na2) | 70%-80% |
| 85%-92% | |
| ≥92% | |
| Sensitivity Test | Qualified |
| Water dissolution test | Qualified |
| Loss on Drying | ≤9% |
As adsorption indicator |
| Used as a biological stain. It is also used as an adsorption indicator for precipitation titration determination of Br-, I-, SCN-, MoO, Ag+, etc. It is used as a color developing agent for the determination of Ag+, Pb2+, Mn2+, Zn2+, etc. by fluorescence spectrometry. |
Name | CAS No. | C.I. No |
Fluorescein | 2321-07-5 | 45350:1 |
Fluorescein sodium | 518-47-8 | 45350 |
Methylthioninium Chloride | 61-73-4 | 52015 |
Basic Violet 3 | 548-62-9 | 42555 |
