Fast Blue RR Salt
Fast Blue RR Salt (CAS 14726-29-5) is a chemical compound with the linear formula C15H14ClN3O3 · 1/2 ZnCl2 and a molecular weight of 387.89 g/mol. This reagent is supplied by Tech Serve Solutions as a powder for in vitro diagnostic use. Its primary applications are as a component in diagnostic kits for the determination of alkaline phosphatase and nonspecific esterase, contributing to accurate cytochemical analysis in various research and diagnostic settings.
- IUPAC
- 4-Benzoylamino-2,5-dimethoxybenzenediazonium chloride hemi(zinc chloride) salt,Azoic Diazo No. 24

Alkaline Phosphatase Determination
Fast Blue RR Salt is employed as a kit component in diagnostic systems, such as Sigma Kits 85L1 and 85L2. It facilitates the quantitative determination of alkaline phosphatase activity, crucial for various biochemical assays.
Nonspecific Esterase Determination
This diazonium salt serves as a key reagent in Sigma Kit 90A1 for the determination of nonspecific esterase. Its use is integral to histochemical staining procedures in diagnostic laboratories.
Cytochemistry and Histology
As a specialized stain and dye, Fast Blue RR Salt is valuable in cytochemistry and histology research. It aids in the visualisation and analysis of cellular components and enzyme activities within biological samples.
| Molecular weight | 387.89 |
|---|---|
| Linear formula | C15H14ClN3O3 · 1/2 ZnCl2 |
| Form | powder |
| Storage temperature | −20°C |
| Application | Used as a kit component for the determination of alkaline phosphatase in Sigma Kits 85L1 and 85L2 and for the determination of nonspecific esterase in Sigma Kit 90A1. |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 37155 |
|---|---|
| Quality Level | IVD |
| Shelf Life | (Expiry date on the label.) |
| Ivd | for in vitro diagnostic use |
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 Blue RR Salt used for?
+
Fast Blue RR Salt is used as a kit component for the determination of alkaline phosphatase (in Sigma Kits 85L1 and 85L2) and nonspecific esterase (in Sigma Kit 90A1), primarily for in vitro diagnostic use.
What is the CAS number and formula for Fast Blue RR Salt?
+
The CAS number for Fast Blue RR Salt is 14726-29-5. Its linear formula is C15H14ClN3O3 · 1/2 ZnCl2, with a molecular weight of 387.89.
What grade and purity does Tech Serve Solutions supply for Fast Blue RR Salt?
+
Tech Serve Solutions supplies Fast Blue RR Salt at an IVD (In Vitro Diagnostic) quality level. We do not represent this product as USP, BP, or EP grade.
How should Fast Blue RR Salt be handled safely?
+
Handle Fast Blue RR Salt with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet for comprehensive handling information.
How is Fast Blue RR Salt packed and shipped?
+
Fast Blue RR Salt is supplied as a powder. It is stored at -20°C. TSS exports this chemical globally, ensuring appropriate packaging for international transport.
How can I request a quote or sample for Fast Blue RR Salt?
+
To request a quote or a sample of Fast Blue RR Salt, please contact our sales department via the website or direct inquiry channels. Our team will be pleased to assist you.
▶ 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