You are here:

Home >> Analytical Reagents >> Dyes, Stains and Indicators >> 2-HYDROXY-1-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO-3-NAPHTHOIC ACID)
2-HYDROXY-1-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO-3-NAPHTHOIC ACID)
ITEM#:508
C10H5(OH)(SO3H)N=NC10H5(OH)(COOH)
CAS#:3737-95-9
F.W.:438.42
NFPA#:
Specific Gravity: 0.000
DOT:NR
Descriptions: HHSNNA. Cal Red. Indicator for calcium in the presence of magnesium.
Specification
TEST
1. Suitability as indicator - Pass test
2. Solubility (Color) Blue to Dark Blue
3. Appearance: Purple/Black Crystals
Properties
No properties.