Carminic acid
Carminic acid (CAS: 1260-17-9, Formula: C22H20O13, MW: 492.39) is a natural red pigment derived from cochineal insects. It is a complex organic compound known for its vibrant colour properties. Carminic acid is primarily utilised as a colouring agent in various industries and finds significant application in biological staining techniques within cell biology and histology.
- IUPAC
- Natural Red 4
Biological Staining
Carminic acid is widely employed as a stain in hematology and histology for microscopic examination. Its ability to bind with cellular components allows for clear visualization of tissue structures and cell types.
Dye and Pigment
As a natural red dye, it is used to impart colour to various materials. Its Colour Index number is 75470, highlighting its historical and current use as a colorant.
Cell Biology Research
In cell biology, carminic acid can be utilized to stain specific cellular components, aiding in research and analysis of cellular structures and processes.
| Molecular weight | 492.39 |
|---|---|
| Empirical formula | C22H20O13 |
| Optical activity | [α]20/D +3.1°, c = 1 in H2O |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 75470 |
|---|---|
| Absorption | λmax 495 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 Carminic acid used for?
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Carminic acid is primarily used as a red dye and pigment, and as a stain in hematology, histology, and cell biology.
What are the CAS number and formula for Carminic acid?
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The CAS number for Carminic acid is 1260-17-9 and its empirical formula (Hill notation) is C22H20O13.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies carminic acid. The specific grade and purity (assay) are available upon request. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade unless explicitly stated in the product documentation.
How should Carminic acid be handled and stored?
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Carminic acid is classified under WGK Germany 2. When handling, it is essential to use safety equipment including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. Store in a well-ventilated area.
Is Carminic acid a controlled substance?
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The provided data does not indicate that Carminic acid is a controlled substance.
How is Carminic acid shipped and exported?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals. Carminic acid is carefully packaged to ensure safe transit and is available for international export. Please contact us for specific shipping and export details.
How can I request a sample or quote for Carminic acid?
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To request a sample or a quote for Carminic acid, please contact our sales team through the website or by phone. Our experts will be pleased to assist you with your requirements.
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