Fast Red Violet LB base
Fast Red Violet LB base (CAS: 121-22-2) is a chemical compound with the molecular formula C14H12ClN3O and a molecular weight of 260.72 g/mol. It functions as a vital intermediate in the synthesis of various dyes and pigments, particularly azo dyes. Its primary applications are found in the fields of histology and cell biology, where it is employed as a component in staining solutions for microscopic examination, enabling precise visualisation of cellular structures.
- IUPAC
- 4′-Amino-2′-chloro-5′-methylbenzanilide
- Synonyms
- 4′-Amino-2′-chloro-5′-methylbenzanilide

Dye and Pigment Intermediate
Fast Red Violet LB base serves as a key precursor in the synthesis of azo dyes and pigments. Its chemical structure allows for the creation of vibrant and stable colourants used across various industries.
Histology and Staining
This compound is utilised in histological staining techniques. It plays a role in the formulation of stains that differentiate cellular components, aiding in pathological and biological research.
Cell Biology Applications
In cell biology, Fast Red Violet LB base is incorporated into specific staining protocols. These protocols help in visualising and analysing cellular morphology and structures under microscopic observation.
| Molecular weight | 260.72 |
|---|---|
| Linear formula | C6H5CONHC6H2(NH2)(Cl)CH3 |
| Melting point | 194 °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) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 294 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 Violet LB base used for?
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Fast Red Violet LB base is primarily used as an intermediate in the synthesis of dyes and pigments, and in histological and cell biology staining applications.
What are the CAS number and molecular formula for Fast Red Violet LB base?
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The CAS number for Fast Red Violet LB base is 121-22-2. The molecular formula is C14H12ClN3O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fast Red Violet LB base at a purity of 98%. We do not represent this product as USP, BP, or EP grade.
How should Fast Red Violet LB base be handled safely?
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Handle Fast Red Violet LB base with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Avoid dust formation and ensure adequate ventilation, as it may cause skin, eye, and respiratory irritation (H315, H319, H335).
Is Fast Red Violet LB base a controlled substance?
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The provided data does not indicate that Fast Red Violet LB base is a controlled substance.
How is Fast Red Violet LB base packed and shipped?
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Fast Red Violet LB base is available in various pack sizes suitable for laboratory and industrial use. Tech Serve Solutions exports globally, adhering to international shipping regulations for chemical compounds.
How can I request a quote or sample?
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To request a quote or sample of Fast Red Violet LB base, please contact our sales team through the website or by phone, providing your specific requirements.
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