NILE CHEMICALS |
METHYL RED |
SPECIFICATION SHEET |
CAS No. | 493-52-7 | |
C.I.No. | 13020 | |
Chemical Formula | C15H15N3O2 | |
Molecular Weight | 269.31 | |
Melting Point | 179-182° c | |
Dye Content | ~95% | |
Absorption Max(pH4.5) | 523-526 nm | |
Absorption Max(pH6.2) | 430-434 nm | |
Absorptivity(1%,1cm)pH 4.5 | >1330 | |
Absorptivity(1%,1cm)pH 6.2 | >700 | |
Transition Range | pH 4.2 - 6.2 Red - Yellow |
|
Loss On Drying (110 ° c) | < 5% |
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