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Technical Data Sheet REACTIVE BLUE 19

Compound Information
Product Name: REACTIVE BLUE 19
CAS No.: 2580-78-1
Molecular Formula: C22H19N2NaO11S3
Molecular Weight: 606.57
Storage: Store at RT
Revision Date: 2026-04-15
Analytical Information
Tests Specifications
Form Crystalline Powder
Color Dark blue
Solubility water: 1 mg/mL, blue
UV Wavelength of Maximum Absorption : λmax 570 -600 nm; Absorptivity (1%/1cm) : ≥75 (at λmax)
Specification Reference suitable for Hematology & Histology
Dye Content ~50% Calculated from Nitrogen
Nitrogen Content 1.8 - 2.9 %
IR Pass test
Disclaimer: This information relates only to the specific material designated and may not be valid for such material used in combination with anyother materials or in any other process. Such information is to be the best of the company's knowledge and believed accurate and reliable as of thedate indicated. However, no representation, warranty or guarantee of any kind, express or implied, is made as to its accuracy, reliability orcompleteness and we assume no responsibility for any loss, damage or expense, direct or consequential, arising out of use. It is the user'sresponsibility to satisfy himself as to the suitableness & completeness of such information for his own particular use.
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