phone 0161 351 9599
mail info@apcpure.com
Methyl Red Sodium Salt C.I. 13020
Excl. VAT
Incl. VAT
£10.64 to £43.88
Code: Please choose option from drop down above
Revert
| Variation ID | Product Code | Pack Size | List Price | Qty | |
|---|---|---|---|---|---|
| RRBD70-U | 10g | £10.64 | |||
| RRBD70-W | 25g | £18.69 | |||
| RRBD70-2W | 50g | £26.07 | |||
| RRBD70-X | 100g | £43.88 |
Revert
Methyl Red sodium salt is the sodium salt of Methyl Red. Methyl red is an indicator dye that turns red in acidic solutions. It is a pH indicator, turning red under pH 4.4, yellow over pH 6.2, and orange in between those values. It is used in microbiology in the Voges-Proskauer test to identify bacteria that produce stable acids through mixed acid fermentation of glucose. Methyl-red positive bacteria include Proteus vulgaris and Escherichia coli. Methyl-red negative bacteria include Enterobacter aerogenes and Serratia marcescens.
- pH Indicator
- Identification of bacteria in Microbiology
C.I.13020
Dye Content: >90%
Molecular Formula: C15H14N3NaO3
Molecular Weight: 291.29 g/mol
Transition Range: pH4.2 (Violet Red) - pH6.2 (Brownish/Yellow)
Maximum Absorption (pH4.2): 523-527nm
Maximum Absorption (pH6.2): 430-434nm
Absorptivity(A1%/1cm@pH4.2): 1200-1300
Absorptivity(A1%/1cm@pH4.2): 675-735
Loss on Drying: <5%
Cas Number: 845-10-3
Einecs Number: 212-682-9
HS Code / Commodity Code: 29270000
Hazard Phrases: H0001