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We now offer a wide range of pH indicator dyes primarily servicing Research and Development. Our suppliers work to high standards and in compliance with GMP and ISO standards. For quantities and pricing, please get in touch
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Product |
CAS Number | pH Range and Colour Change |
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| Alizarin Yellow GG | 584-42-9 | 10.0 - 12.0 | Bromocresol Green Free Acid ACS | 76-60-8 | 3.8 - 5.4 | ||||||||
| Bromocresol Purple Free Acid ACS | 115-40-2 | 5.2 - 6.8 | |||||||||||
| Bromophenol Blue Free Acid ACS | 115-39-9 | 3.0 - 4.6 | |||||||||||
| Bromothymol Blue Free Acid ACS | 76-59-5 | 6.0 - 7.6 | |||||||||||
| Bromophenol Red Free Acid | 2800-80-8 | 5.2 - 6.8 | |||||||||||
| Chlorophenol Red | 4430-20-0 | 4.8 - 6.4 | |||||||||||
| Congo Red | 573-58-0 | 3.0 - 5.0 | |||||||||||
| o-Cresolphthalein | 596-27-0 | 8.2 - 9.8 | |||||||||||
| Meta-Cresol Purple | 2303-01-7 | 1.2 - 2.8; 7.4 - 9.0 | |||||||||||
| Cresol Red Free Acid | 1733-12-6 | 0.2 - 1.8; 7.0 - 8.8 | |||||||||||
| Ethyl Orange Sodium Salt | 62758-12-7 | 3.4 - 4.8 | |||||||||||
| Ethyl Red Indicator | 76058-33-8 | 4.5 - 6.5 | |||||||||||
| Litmus Granules | 1393-92-6 | 4.5 - 8.3 | |||||||||||
| Methyl Orange ACS | 547-58-0 | 3.0 - 4.4 | |||||||||||
| Orange IV | 554-73-4 | 1.4 - 2.6 | |||||||||||
| Phenol Red Free Acid ACS | 143-74-8 | 6.8 - 8.4 | |||||||||||
| Phenolphthalein White ACS | 77-09-8 | 8.0 - 10.0 | |||||||||||
| Thymol Blue Free Acid ACS | 76-61-9 | 1.2 - 2.8; 8.0 - 9.6 | |||||||||||
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