Pinacyanol chloride
Pinacyanol chloride (CAS: 2768-90-3; Formula: C25H25ClN2; Molar Mass: 388.93) is a cyanine dye known for its strong absorption in the visible spectrum. It is widely recognised for its applications in cell biology, hematology, and histology due to its staining properties. Supplied by Tech Serve Solutions, this compound is a valuable reagent for various scientific and diagnostic procedures.
- IUPAC
- 1,1′-Diethyl-2,2′-carbocyanine chloride,2,2′-Trimethinequinocyanine chloride,Quinaldine blue
- Synonyms
- 1,1′-Diethyl-2,2′-carbocyanine chloride2,2′-Trimethinequinocyanine chlorideQuinaldine blue

Histology and Hematology Staining
Pinacyanol chloride serves as a vital stain in histological and hematological preparations. It helps in differentiating various cellular components and blood cells, aiding in microscopic examination and diagnosis.
Cell Biology Research
In cell biology, this dye is employed for visualising cellular structures and processes. Its spectral properties make it useful in certain imaging and analytical techniques within this field.
Dye and Pigment Applications
As a cyanine dye, Pinacyanol chloride may find use in specialised applications requiring specific spectral absorption characteristics, such as in certain dye-based formulations or optical materials.
| Molecular weight | 388.93 |
|---|---|
| Empirical formula | C25H25ClN2 |
| Melting point | 270 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 560 nm (2nd)λmax 604 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 Pinacyanol chloride used for?
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Pinacyanol chloride is primarily used as a stain in histology and hematology for differentiating cellular components and blood cells, and also in cell biology research for visualising cellular structures.
What are the CAS number and chemical formula for Pinacyanol chloride?
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The CAS number for Pinacyanol chloride is 2768-90-3, and its chemical formula is C25H25ClN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pinacyanol chloride as a research-grade chemical. The specific assay and purity are detailed in the product specifications; TSS does not represent this product as USP, BP, or EP grade.
How should Pinacyanol chloride be handled safely?
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Handle Pinacyanol chloride with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, as it may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is Pinacyanol chloride a controlled substance?
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The provided data does not indicate that Pinacyanol chloride is a controlled substance.
How is Pinacyanol chloride packed and exported?
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Pinacyanol chloride is carefully packed to ensure stability during transit and is available for global export by Tech Serve Solutions.
How can I request a quote or sample for Pinacyanol chloride?
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To request a quote or sample for Pinacyanol chloride, please contact our sales team through the website or designated contact channels.
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