Merck, 1062460005, 1-Naphtholphthalein
Size:5 g, 1-Naphtholphthalein, indicator
Catalog Number: 1062460005
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| UNSPSC Code | 12352115 |
|---|---|
| EC Index Number | 209-875-5 |
| NACRES | NA.21 |
| Web Name Suffix Override | pH indicator |
| MDL number | MFCD00036202 |
| SMILES string | O1C(c6c(cccc6)C1=O)(c4c5c(c(cc4)O)cccc5)c2c3c(c(cc2)O)cccc3 |
| InChI | 1S/C28H18O4/c29-25-15-13-23(17-7-1-3-9-19(17)25)28(22-12-6-5-11-21(22)27(31)32-28)24-14-16-26(30)20-10-4-2-8-18(20)24/h1-16,29-30H |
| InChI key | HQHBAGKIEAOSNM-UHFFFAOYSA-N |
| form | solid |
| loss | ≤5% loss on drying, 110°C |
| visual transition interval | 7.1-8.3, pink-brown to blue |
| mp | 253-255 °C |
| bulk density | 350 kg/m3 |
| A<sub>max</sub> | 470-485 nm (buffer pH 7.1) |
| storage temp. | 2-30°C |
| Quality Level | 200 |
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