Product	Sodium 2,3-dihydroxyl naphthalene-6-sulfonate (Dihydroxyl R Salt)
CAS NO.	135-53-5
EINECS	205-198-4
Structural Formula
Molecular Formula	C10H7NaO5S
Uses	mainly used as coupling agent for diazo photosensitive paper, also used as food additive, etc.
Purity	≥99%
Molecular Weight	240.3
Moistur	≤0.5%
Appearance	white crystalline powder
Packing	25kg fibre drum lined with plastic bags