Indigo carmine
Indigo carmine (CAS: 860-22-0) is a water-soluble blue dye with the empirical formula C16H8N2Na2O8S2 and a molecular weight of 466.35 g/mol. It functions as a pH indicator and a vital stain in biological applications. Utilised extensively in cell biology, histology, and hematology, it is recognised for its utility in various diagnostic and research procedures.
- IUPAC
- Acid Blue 74,Indigo-5,5′-disulfonic acid disodium salt,Indigocarmine
- Synonyms
- Acid Blue 74Indigo-5,5′-disulfonic acid disodium saltIndigocarmine
Biological Staining
Indigo carmine serves as a key stain in cell biology, hematology, and histology. Its ability to selectively stain cellular components aids in microscopic examination and diagnostic procedures.
pH Indicator
This compound exhibits colour changes within specific pH ranges, making it useful as a pH indicator in laboratory settings for titration and solution analysis.
Diagnostic Agent
In medical contexts, it is employed as a diagnostic agent, for example, to visualise urinary tract anatomy during surgical procedures due to its excretion via the kidneys.
| Molecular weight | 466.35 |
|---|---|
| Empirical formula | C16H8N2Na2O8S2 |
| Colour Index Number | 73015 |
|---|---|
| Absorption | λmax 608 nm |
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 Indigo Carmine used for?
+
Indigo carmine is used as a biological stain in cell biology, hematology, and histology, and as a pH indicator. It also finds application as a diagnostic agent in medical procedures.
What are the CAS number and formula for Indigo Carmine?
+
The CAS number for Indigo Carmine is 860-22-0, and its empirical formula is C16H8N2Na2O8S2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Indigo Carmine typically as a reagent grade, suitable for laboratory research. The specific purity assay will be detailed on the Certificate of Analysis provided with your order. We do not represent this product as USP/BP/EP grade unless explicitly stated.
What are the safety considerations for handling Indigo Carmine?
+
Handle Indigo Carmine with appropriate personal protective equipment, including gloves and eye protection. Avoid inhalation of dust and ensure adequate ventilation. Refer to the Safety Data Sheet (SDS) for comprehensive hazard information and handling procedures.
How is Indigo Carmine packaged and shipped?
+
Indigo Carmine is carefully packaged to ensure stability during transit and is exported globally by Tech Serve Solutions in compliance with all relevant shipping regulations.
How can I request a quote or sample for Indigo Carmine?
+
To request a quote or a sample of Indigo Carmine, please contact our sales department via the website or direct email, specifying the required quantity and your delivery details.
▶ 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