Astrazon Orange G
Astrazon Orange G (CAS: 3056-93-7, Formula: C22H23ClN2) is a metachromatic dye with a molecular weight of 350.88 g/mol. It is primarily used in various laboratory staining applications, particularly within cell biology and histology. This compound, also known by its Colour Index Number 48035, serves as a valuable reagent for researchers and scientists requiring precise staining for microscopic analysis and differential cell identification.
- IUPAC
- Basic Orange 21

Cell Biology Staining
Astrazon Orange G is employed as a metachromatic dye for cellular structure visualisation. Its properties allow for differential staining, aiding in the identification of various cellular components under microscopy.
Histological Applications
In histology, this dye is utilised for staining tissue sections. It helps to highlight specific tissues and cellular elements, supporting accurate diagnosis and research in pathological and biological studies.
Research Reagent
As a laboratory reagent, Astrazon Orange G finds application in diverse research settings requiring specialised staining techniques. Its unique spectral properties (λmax 490 nm) contribute to its utility in specific analytical methods.
| Molecular weight | 350.88 |
|---|---|
| Empirical formula | C22H23ClN2 |
| Application | Metachromatic dye |

Hazard statements
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-28-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 48035 |
|---|---|
| Absorption | λmax 490 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 Astrazon Orange G used for?
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Astrazon Orange G is used as a metachromatic dye in cell biology and histology for microscopic staining applications.
What is the CAS number and formula for Astrazon Orange G?
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The CAS number is 3056-93-7 and the empirical formula is C22H23ClN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Astrazon Orange G, identified by CAS 3056-93-7, with a typical molecular weight of 350.88 g/mol. We do not represent this product as USP, BP, EP or other pharmacopoeia grades unless explicitly stated. For detailed purity information, please consult the Certificate of Analysis.
How should Astrazon Orange G be handled safely?
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Astrazon Orange G is harmful if swallowed, in contact with skin, or if inhaled, and causes skin and serious eye irritation, and may cause respiratory irritation. Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet for comprehensive handling guidelines.
Can Tech Serve Solutions export Astrazon Orange G?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Astrazon Orange G, serving customers worldwide.
How can I request a sample or quote for Astrazon Orange G?
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To request a sample or a quote for Astrazon Orange G, please contact our sales team through the website or by phone, providing your specific requirements.
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