Resazurin sodium salt, tablets for milk analysis
Supplier: VWR Chemicals
Synonyms:
7-Sodiooxy-3H-phenoxazin-3-one 10-oxide
, Sodium 7-oxido-3-oxo-3H-phenoxazine 10-oxide
, Resazurin
A standard solution of resazurin is prepared by dissolving one tablet in 50ml of sterile glass-distilled water. One ml of this solution should be added to 10ml of milk for each test. Solutions must be made freshly each day.
During incubation with milk resazurin undergoes reduction and the colour changes from blue to pink to colourless. The rate of colour change is an indication of the number of microbial organisms in the sample.
Formula:
C₁₂H₆NNaO₄ MW: 251,17 g/mol Storage Temperature: Ambient |
MDL Number:
MFCD00005036 CAS Number: 62758-13-8 EINECS: 263-718-5 |
Specification Test Results
Appearance | Red to purple tablets |
Shape | Round biconvex |
Average tablet weight | 240 - 260 mg |
Diameter | 7.50 - 8.00 mm |
Solubility in water (2 tablets/100 ml) | Max. 4.0 min |
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About VWR
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