1.06246

1-Naphtholphthalein

pH indicator

• 别名: 1-Naphtholphthalein
• 经验公式（希尔记法）: C₂₈H₁₈O₄
• CAS号: 596-01-0
• 分子量: 418.44
• MDL號碼: MFCD00036202
• 分類程式碼代碼: 12352115
• 酶委員會索引編號: 209-875-5
• NACRES: NA.21

属性

• 产品名称: 1-Naphtholphthalein, indicator
• 品質等級: 200
• 形狀: solid
• 損耗: ≤5% loss on drying, 110°C
• visual transition interval: 7.1-8.3, pink-brown to blue
• mp: 253-255 °C
• 體積密度: 350 kg/m³
• Amax: 470-485 nm (buffer pH 7.1); 649-654 nm (buffer pH 8.3)
• 儲存溫度: 2-30°C
• SMILES 字串: 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 密鑰: HQHBAGKIEAOSNM-UHFFFAOYSA-N

说明

分析報告

Identity (UV/VIS-Spectrum): passes test
Transition range: pH 7.1 - pH 8.3pinkbrownish - blue
Absorption maximum λ 1 (buffer pH 7.1): 470 - 485 nm
Absorption maximum λ 2 (buffer pH 8.3): 649 - 654 nm
Spec. Absorptivity A 1%/1cm (λ1_max; 0.01 g/l; buffer pH 7.1; calc. on anhydrous substance): 100 - 180
Spec. Absorptivity A 1%/1cm (λ2_max; 0.01 g/l; buffer pH 8.3; calc. on anhydrous substance): 360 - 520
Loss on drying (110 °C): ≤ 5 %

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable