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Form	MW
m-Cresol purple sodium This page	404.41
m-Cresol purple	382.43

m-Cresol purple sodium

pH Indicator

m-Cresol purple sodium is a pH indicator primarily used in biological research and analytical chemistry. This compound transitions from yellow to blue within the pH range of 7.5 to 9.0, making it an effective tool for assessing pH in various experimental setups. Its precise colorimetric response aids in determining the acidity or alkalinity of solutions, facilitating studies in enzymatic reactions, culture media preparation, and environmental monitoring.

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Specifications

Manufacturer	Adooq Bioscience
CAS Number	62625-31-4
Applications	pH Indicator
Formula	C₂₁H₁₇NaO₅S
Molecular Weight	404.41
Synonyms	Metacresol purple sodium
SMILES	O=S1(OC2=C(C1(C3=CC=C(C=C3C)O)C4=CC=C(C=C4C)O[Na])C=CC=C2)=O

Storage & Solubility

In Vitro Solubility

Reported Solubility

No reported solubility data are available for this product.

Preparing Stock Solutions

Stock preparation is unavailable for this product molecular weight.

Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.

Storage

Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.