Phenol Red ACS

Please note: This product replaces S0001610-5G

What is Phenol Red? It is a chemical reagent commonly used in laboratory applications. It is a pH indicator that changes colour in response to variations in the acidity or alkalinity (pH) of a solution. Phenol Red is often employed in experiments involving cell cultures, microbiology, and various chemical assays to monitor pH levels. Its colour transitions from yellow (acidic) to red (neutral) to bright pink (alkaline) over the typical pH range. This characteristic makes it a valuable tool for researchers and scientists to visually assess and measure pH changes in their samples with precision and accuracy.

Consistent Quality: We provide only high-quality Phenol Red ensuring reliable and consistent performance for all applications.

Shipped from Manchester, UK Facility: Sourced and bottled in non-toxic, chemical-resistant containers to ensure safe handling and preserve product quality during transport.

Minimum Assay: 99%
Molecular Formula: C19H14O5S
Molecular Weight: 354.38 g/mol
Melting Point : >300 °C
pH transition—colour change:  pH6.5 (Yellow),  Ph8.2 (Red Violet)
Wavelength of maximum absorption (pH6.5) λ max 1:  430.0—435.0nm
Specific absorption (E 1%/1cm)  at λ max 1:   600—700
Wavelength of maximum absorption (pH8.2) λ max 2:  557.0—560.0nm
Specific absorption (E 1%/1cm)  at λ max 2:   1100—1200
Loss on drying (110˚C):  < 3.00%
Storage: Keep in tightly closed container away from moisture and direct sunlight

Cas Number: 143-74-8

Einecs Number: 205-609-7

HS Code / Commodity Code: 3822900000

Hazard Phrases: H0001