1.01340

Congo red (C.I. 22120)

pH indicator, Reag. Ph Eur

• 別名: Congo red (C.I. 22120)
• 実験式（ヒル表記法）: C₃₂H₂₂N₆Na₂O₆S₂
• CAS番号: 573-58-0
• 分子量: 696.66
• MDL番号: MFCD00004028
• UNSPSCコード: 12352107
• EC Index Number: 209-358-4
• NACRES: NA.21

特性

• 製品名: Congo red (C.I. 22120), indicator Reag. Ph Eur
• 認証: reag. Ph. Eur.
• 品質水準: 200
• 蒸気圧: <1 Pa
• フォーム: powder
• 有効性: 143 mg/kg LD₅₀, oral (Rat)
• 損失: ≤5% loss on drying, 110°C
• 色: almost clear to slightly turbid red, 1.0g/L;water; red-brown
• pH: 6.7 (20 °C, 10 g/L in H₂O)
• mp: >360 °C
• かさ密度: 600‑700 kg/m³
• 保管温度: 2-30°C
• SMILES記法: [Na+].[Na+].[S](=O)(=O)([O-])c1c2c(c(c(c1)N=Nc3ccc(cc3)c4ccc(cc4)N=Nc5c(c6c(c(c5)[S](=O)(=O)[O-])cccc6)N)N)cccc2
• InChI: 1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2
• InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L

詳細

アナリシスノート

Appearance: Red-brown to brownishred powder, eventually with granular parts.
Appearance of solution (1.0 gr/l; water): Almost clear to slightly turbid, red
Transition range: pH 3.0 - pH 5.2violet - orange-red
Loss on drying (110 °C): ≤ 5 %
Sensitivity test: passes test

安全性情報

• ピクトグラム: GHS08
• シグナルワード: Danger
• 危険有害性情報: H350 - H361d
• 注意書き: P201 - P202 - P280 - P308 + P313 - P405 - P501
• 危険有害性の分類: Carc. 1B - Repr. 2
• 保管分類コード: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3