Fast Red ITR
Fast Red ITR (CAS 97-35-8), a chemical compound with the formula C11H18N2O3S and a molecular weight of 258.34 g/mol, is a dye primarily utilised in biological staining. It is recognised by its Colour Index Number 37150. This compound plays a role in various laboratory applications, particularly within cell biology and histology, for visualising cellular structures and tissues. Its specific spectral properties include an absorption maximum at 226 nm.
- IUPAC
- Azoic Diazo No. 42

Biological Staining
Fast Red ITR serves as a vital stain in biological and histological applications. It is used to differentially colour cellular components and tissue structures, aiding in microscopic examination and research.
Cell Biology Research
Within cell biology, this dye facilitates the visualisation of cellular morphology and organisation. Researchers employ it to observe cell structures and study cellular processes.
Histological Preparations
In histology, Fast Red ITR is applied to stained slides for the examination of tissue samples. Its properties allow for the differentiation of various tissue elements.
| Molecular weight | 258.34 |
|---|---|
| Empirical formula | C11H18N2O3S |
| Melting point | 102-105 °C(lit.) |
| Colour Index Number | 37150 |
|---|---|
| Absorption | λmax 226 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 Fast Red ITR used for?
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Fast Red ITR is primarily used as a stain in cell biology and histology for visualising cellular structures and tissues under a microscope.
What are the CAS number and formula for Fast Red ITR?
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The CAS number for Fast Red ITR is 97-35-8, and its chemical formula is C11H18N2O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fast Red ITR as a laboratory reagent. The specific assay and purity information are available on the product's Certificate of Analysis. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations for handling Fast Red ITR?
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Fast Red ITR (CAS 97-35-8) is classified under GHS with specific hazards that must be strictly observed. Users should consult the Safety Data Sheet (SDS) for detailed handling, storage, and disposal guidelines, including appropriate personal protective equipment.
How is Fast Red ITR packed, shipped, and exported?
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Fast Red ITR is carefully packed to ensure integrity during transit. Tech Serve Solutions is experienced in exporting chemicals globally, adhering to all relevant shipping regulations.
How can I request a sample or quote for Fast Red ITR?
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To request a sample or a quotation for Fast Red ITR, please contact our sales department through the website or by phone, providing your specific requirements.
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