Fluorescein Sodium
CAS No.: 518-47-8
Product Name: Fluorescein Sodium
CAS#518-47-8
Spec: USP grade
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#518-47-8
Spec: USP grade
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of Fluorescein Sodium :
| Items | Specification | Results |
| Characteristics | Orange-red, fine powder | Orange-red, fine powder |
| Identification | A.A solution is strongly fluorescent, even in extreme dilution.The fluorescence disappears when the solution is made acid, and reappears when the solution is again made alkaline B.IDENTIFICATION TESTS—GENERAL, Sodium<191>The residue remaining after incineration meets the requirements. C.The retention time of the major peak of the Sample solution corresponds to thatof the Standard solution, as obtained in the Assay. |
A. Positive B. Positive C.Positive |
| Zinc | No turbidity is produced. | Complies |
| Acriflavine | No precipitate is formed. | Complies |
| Related substance |
Resorcinol:≤0.5% | ND |
| Melting Point | Phthalic acid:≤0.5% | ND |
| Fluorescein related compound C:≤0.5% | 0.15% | |
| Unspecified impurity:≤0.1% | 0.03% | |
| Total unspecified impurities:≤0.5% | 0.18% | |
| Water Determination | ≤17.0% | 4% |
| Pyrogen tests | Complies to requirement | Complies |
| Microbiological tests | Total aerobic bacteria:≤1000cfu/g | <10cfu/g |
| Total yeasts and molds:≤100cfu/g | <10cfu/g | |
| E.Coli,S.Aureus,P.aeruginosa&C.albicans:absent per g. | ND | |
| Assay | 90.0 % to 102.0 %calculated on the anhydrous basis.. | 98.2% |
