C15H15N3O2Acid Red 2 M.W: 269,31 : :
CAS: 493-52-7 : :
EC: 207-776-1 : :
P: P102-P202 : :
Specifications :
- Appearance Dark red to maroon to violet or purple powder or crystals
- Transition range pH Dark red to maroon to violet or purple powder or crystals
- Absorption maximum ?1max (pH 4.5) 523 - 526nm
- Absorption maximum ?1max (pH 6.2) 427 - 437nm
- Loss on drying ? 5.0%
reference: MTRE-00D-100, packaging: plastic bottle, capacity: 100 g