m-Cresol Purple
m-Cresol Purple (CAS: 2303-01-7), with the empirical formula C21H18O5S and a molecular weight of 382.43, is a vital laboratory reagent and pH indicator. It exhibits distinct colour changes across two useful pH ranges, making it invaluable in analytical chemistry. Primarily employed as a pH indicator in titration and various cell biology applications, its reliable performance ensures accurate results in laboratory settings.
- IUPAC
- m-Cresolsulfonphthalein
pH Indicator
m-Cresol Purple serves as a pH indicator, changing colour from red to yellow in the acidic range of 1.2-2.8. It also transitions from yellow to violet in the alkaline range of 7.4-9.0, facilitating precise pH monitoring in titrations and buffer preparations.
Cell Biology Applications
This compound is utilised in cell biology studies. Its distinct colourimetric properties aid in monitoring cellular environments and processes where pH fluctuations are critical indicators of biological activity.
Hematology and Histology Staining
As a stain and dye, m-Cresol Purple finds application in hematology and histology. It assists in the differential staining of biological tissues and cells, aiding in microscopic examination and diagnostic procedures.
| Molecular weight | 382.43 |
|---|---|
| Empirical formula | C21H18O5S |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 371 nm (2nd)λmax 579 nm |
|---|---|
| Useful Ph Range | 1.2 - 2.8, red to yellow (acid)7.4 - 9.0, yellow to violet (alkaline) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is m-Cresol Purple used for?
+
m-Cresol Purple is primarily used as a pH indicator, with distinct colour changes in the acidic (1.2-2.8) and alkaline (7.4-9.0) ranges. It also finds applications in cell biology, hematology, and histology as a stain.
What are the CAS number and formula for m-Cresol Purple?
+
The CAS number for m-Cresol Purple is 2303-01-7, and its empirical formula is C21H18O5S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies m-Cresol Purple typically as a reagent or research grade chemical. We do not represent it as USP, BP, or EP grade unless explicitly stated in the product specifications.
What are the safety and handling considerations for m-Cresol Purple?
+
Handling m-Cresol Purple requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. It is classified under WGK Germany 3, indicating a high hazard to water.
How is m-Cresol Purple packed, shipped, and exported?
+
Tech Serve Solutions ensures that m-Cresol Purple is carefully packed to maintain its integrity during transit. We are experienced global suppliers and exporters of fine chemicals, adhering to all relevant shipping and export regulations.
How can I request a sample or quote for m-Cresol Purple?
+
To request a sample or obtain a quote for m-Cresol Purple, please contact our sales department through the designated channels on the Tech Serve Solutions website.
▶ Related products
(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology
(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis