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Technical Data Sheet PONCEAU 3R

Compound Information
Product Name: PONCEAU 3R
CAS No.: 3564-09-8
Molecular Formula: C19H19N2NaO7S2
Molecular Weight: 474.48
Storage: Store at RT
Revision Date: 2026-04-15
Analytical Information
Tests Specifications
Appearance Red powder
Absorbance ≥ 460 nm (0.02 mol/L AcONH4 sol., 506.0 - 510.0 nm)
λmax 506.0 - 510.0 nm (0.02 mol/L AcONH4 sol.)
Absorbance(E1%1cm) ≥300 (H2O, λmax= 503-509 nm)
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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