Alizarin Red S, Sodium Salt 72+% (Dye content)

Cat# 235260-25g

Size : 25g

Brand : US Biological

Contact local distributor :


Phone : +1 850 650 7790


Grade
Reagent Grade

Shipping Temp
RT

Storage Temp
RT

3,4-Dihydroxy-9,10-dioxo-2-anthracenesulfonic acid sodium salt|CI 58005
Used in the biochemical assay to determine the presence of calcium.

Synonyms:
3,4-Dihydroxy-9,10-dioxo-2-anthracenesulfonic acid sodium salt CI 58005

CAS No:
130-22-3

Molecular Formula:
C14H7O7SNa

Molecular Weight:
342.26

Purity:
≥72% (Dye content)

Appearance:
Brownish yellow powder

Visual Transition Range:
pH 4.3 (Brilliant yellow) to pH 6.3 (Pink)
pH 9.4 (Brown orange) to pH 12.0 (Violet)

Absorptivity:
λmax 595nm (0.1N NaOH): ≥320
λmax 556nm (0.1N NaOH): ≥350

Loss on Drying (110°C):
≤5%

Solubility (1mg/ml in H2O):
Clear solution

Storage and Stability:
Powder may be stored at RT. Stable for 12 months at RT after receipt.

Important Note

This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


Toxicity and Hazards
 

All products should be handled by qualified personnel only, trained in laboratory procedures.