CERTIFICATE OF ANALYSIS

PRODUCT NAME: Chromotropic Acid Disodium Salt Dihydrate AnalaR
Date of Mfg: Sample COA RETEST DATE: Sample COA
Catalogue Number ANAR-030
Item/Batch Number Sample COA
Quantity Sample COA
CAS Number 5808-22-0
Mol. Formula C10H6O8S2Na2·2H2O
Molecular Wt 400.28
Synonyms 4,5-Dihydroxy-2,7-naphthalene disulfonic acid sodium salt; Disodium Chromotropate Dihydrate
Long Term Storage Condition Room Temperature below 30°C
Handling instruction Sample COA
Test Results
Appearance Gray-white to Light Brownish
Water content by KF/TGA Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100 Sample COA
Identification by HNMR Sample COA
Identification By IR Sample COA
Mass (ESI) Sample COA
Solubility Soluble in Water
Purity Assay NLT 99% BY (Acidimetric, calc. on anhydrous substance)
Analysis Date (Release Date) Sample COA
Attachments Sample COA
Other Information Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption
This is Sample COA