1.08380

2,3,5-トリフェニルテトラゾリウムクロリド

Color indicator. Supplement in culture media for the microbiological analysis of food and water samples

• 別名: TPTZ, TTZ, テトラゾリウムレッド
• 実験式（ヒル表記法）: C₁₉H₁₅ClN₄
• CAS番号: 298-96-4
• 分子量: 334.80
• Beilstein: 3923356
• MDL番号: MFCD00011963
• UNSPSCコード: 41106212
• NACRES: NA.74

特性

• 品質水準: 200
• アッセイ: ≥98% (calculated on dried substance, perchloric acid titration)
• 形状: solid
• pH: 3.7 (20 °C, 10 g/L in H₂O)
• mp: 243 °C (decomposition)
• 溶解性: 150 g/L
• かさ密度: 230 kg/m³
• アプリケーション: microbiology
• 保管温度: 2-30°C
• SMILES記法: [Cl-].c1ccc(cc1)-c2nn(-c3ccccc3)[n+](n2)-c4ccccc4
• InChI: 1S/C19H15N4.ClH/c1-4-10-16(11-5-1)19-20-22(17-12-6-2-7-13-17)23(21-19)18-14-8-3-9-15-18;/h1-15H;1H/q+1;/p-1
• InChI Key: PKDBCJSWQUOKDO-UHFFFAOYSA-M

詳細

詳細

2,3,5-triphenyltetrazolium chloride (TTC) is a dye largely used for enumeration of microbial colonies in solid culture media, being a key component of the dry rehydratable film system used for microbiological analysis of food. This dye is colorless in the oxidized form and red when reduced by microorganisms, due to formation of formazan. Live microorganisms reduce TTC by enzymatic action, forming red color formazan that is kept inside granules in the cells.

アプリケーション

2,3,5-triphenyltetrazolium chloride (TTC) is an indicator recommended for the microbiological analysis of food.

アナリシスノート

Assay (perchloric acid titration, calculated on dried substance): ≥ 98 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ_max. (water): 245 - 248 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0,01 g/l; water; calculated on dried substance): ≥ 770
TLC-Test: passes test
Loss on drying (70 °C; ≤ 1 hPa): ≤ 0.5 %
Suitability for testing the germinability of seeds: passes test
Suitability for microbiology: passes test

安全性情報

• ピクトグラム: GHS02,GHS07
• シグナルワード: Danger
• 危険有害性情報: H228 - H315 - H319
• 注意書き: P210 - P240 - P241 - P264 - P302 + P352 - P305 + P351 + P338
• 危険有害性の分類: Eye Irrit. 2 - Flam. Sol. 1 - Skin Irrit. 2
• 保管分類コード: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3