1.06278

Alizarin red S mono sodiumsalt (C.I. 58005)

visual transition interval 4.3-6.3, yellow to pink, visual transition interval 9.4-12.0, brown-orange to violet

• Synonym(s): Alizarin red S mono sodiumsalt (C.I. 58005)
• Empirical Formula (Hill Notation): C₁₄H₇NaO₇S
• CAS Number: 130-22-3
• Molecular Weight: 342.26
• MDL番号: MFCD00013049
• EC 指数: 204-981-8

Properties

• 損失: ≤10% loss on drying, 110°C
• 品質水準: 200
• visual transition interval: 4.3-6.3, yellow to pink; 9.4-12.0, brown-orange to violet
• Amax: 418-424 nm (buffer pH 4.3; buffer pH 4.3; 1 buffer pH 4.3); 444-450 nm (buffer pH 9.4); 510-517 nm (buffer pH 6.3); 554-558 nm (buffer pH 12.0)
• 保管温度: 2-30°C
• InChI: 1S/C14H8O7S.Na/c15-11-6-3-1-2-4-7(6)12(16)10-8(11)5-9(22(19,20)21)13(17)14(10)18;/h1-5,17-18H,(H,19,20,21);/q;+1/p-1
• InChI key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M

Description

詳細

for analysis and indicator

包装

25, 25 , 100 g in Glass bottle

アナリシスノート

Identity (UV/VIS-Spectrum): passes test
1st transition range: pH 4.3 - pH 6.3 Lightly yellow - pink
2nd transition range: pH 9.4 - pH 12.0 Brown orange - violet
Absorption maximum λ 1 (buffer pH 4.3): 418 - 424 nm
Absorption maximum λ 2 (buffer pH 6.3): 510 - 517 nm
Absorption maximum λ 3 (buffer pH 9.4): 444 - 450 nm
Absorption maximum λ 4 (buffer pH 12.0): 554 - 558 nm
Spec. Absorptivity A 1%/1cm (λ1_max; 0.01 g/l; buffer pH 4.3; calc. on dried substance): 135 - 180
Spec. Absorptivity A 1%/1cm (λ2_max; 0.01 g/l; buffer pH 6.3; calc. on dried substance): 145 - 210
Spec. Absorptivity A 1%/1cm (λ3_max; 0.01 g/l; buffer pH 9.4; calc. on dried substance): 170 - 230
Spec. Absorptivity A 1%/1cm (λ4_max; 0.01 g/l; buffer pH 12.0; calc. on dried substance): 340 - 520
Loss on drying (110 °C): ≤ 10 %

Safety Information

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable