PRODUCT NAME: 1,4-Benzoquinone-2-Sulfonic Acid
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	FIN-323
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	877-19-0
Alternate CAS Number	51368-42-4 (K Salt), 51579-78-3 (Na Salt)
Mol. Formula	C6H4O5S
Molecular Wt	188.16
Long Term Storage Condition	Long term 2-8°C Refrigerator	Handling instruction	Sample COA
Chemical Name	1,4-Benzoquinone-2-Sulfonic Acid
Synonyms	3,6-dioxocyclohexa-1,4-diene-1-sulfonic acid; 1,4-Cyclohexadiene-1-sulfonic acid, 3,6-dioxo-

Test	Results
Appearance	Yellow to green-yellow Crystalline Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 95%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility
QC Release Date	Sample COA
Attachments	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption