Reactive Red 120
Reactive Red 120 (CAS: 61951-82-4) is a complex organic dye with the molecular formula C44H24Cl2N14O20S6Na6 and a molecular weight of 1469.98 g/mol. This compound is recognised for its utility as a staining agent in various biological and histological applications. It is a crucial reagent for researchers and technicians in fields requiring precise cellular and tissue visualisation.

Histology Staining
Reactive Red 120 is employed as a stain in histological preparations. It aids in visualising cellular structures and tissue morphology under microscopic examination, contributing to diagnostic and research processes.
Cell Biology Research
In cell biology, this dye serves as a valuable tool for staining cells and observing subcellular components. Its specific staining properties assist in differentiating various cellular elements in research settings.
Dye Applications
As a reactive dye, it finds applications where strong covalent bonding to substrates is required. This characteristic is beneficial in various specialised dyeing and staining procedures.
| Molecular weight | 1469.98 |
|---|---|
| Linear formula | C44H24Cl2N14O20S6Na6 |

Hazard statements
- H317May cause an allergic skin reaction
- H334May cause allergy or asthma symptoms if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 42/43 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Reactive Red 120 used for?
+
Reactive Red 120 is primarily used as a staining agent in histology and cell biology to visualise cellular structures and tissue morphology.
What is the CAS number and formula for Reactive Red 120?
+
The CAS number for Reactive Red 120 is 61951-82-4, and its molecular formula is C44H24Cl2N14O20S6Na6.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Reactive Red 120 as a high-quality reagent suitable for research and laboratory use. The specific assay and purity details are available on the product's Certificate of Analysis. TSS does not represent this product as USP, BP, or EP grade.
How should Reactive Red 120 be handled safely?
+
Reactive Red 120 is classified with GHS08 symbol, a Danger signal word, and hazard statements H317-H334, indicating it may cause an allergic skin reaction and allergic respiratory reaction. Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, faceshields, and gloves. Ensure adequate ventilation and avoid breathing dust. Precautionary statements include P261, P280, and P342 + P311.
Is Reactive Red 120 available for export?
+
Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Reactive Red 120, serving customers worldwide.
How can I request a quote or sample for Reactive Red 120?
+
To request a quote or a sample of Reactive Red 120, please contact our sales department through the website or by phone, providing your specific requirements.
▶ Related products

(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology

(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology

(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis