Name | ALPHA-NAPHTHOLBENZEIN |
Synonyms | α-Naphtholbenzein 1-NAPHTHOLBENZEIN ALPHA-NAPHTHOLBENZEIN LABOTEST-BB LT00441167 Bis-(4-hydroxy-1-naphthyl)phenylmethanol 4,4'-[ALPHA-HYDROXYBENZYLIDENE]-DI-1-NAPHTHOL 4-hydroxy-alpha-(4-hydroxynaphthyl)-alpha-phenylnaphthalene-1-methanol |
CAS | 6948-88-5 |
EINECS | 230-116-9 |
Molecular Formula | C27H18O2 |
Molar Mass | 374.43 |
Density | 1.1098 (rough estimate) |
Melting Point | 230-235 °C(lit.) |
Boling Point | 477.16°C (rough estimate) |
Solubility | DMSO (Slightly), Methanol (Slightly) |
Appearance | Powder |
Color | Red-brown |
pKa | 9.14±0.40(Predicted) |
Storage Condition | Amber Vial, Room Temperature |
Sensitive | Sensitive to light |
Refractive Index | 1.5460 (estimate) |
MDL | MFCD00003979 |
Use | Acid-base indicator, pH8 · 5 (yellow) ~ 9 · 8 (green) |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
FLUKA BRAND F CODES | 10-21 |
HS Code | 29071590 |
pH range of acid-base indicator discoloration | 8.5(YELLOW)-9.8(GREEN) |