1.08380

2,3,5-Triphenyltetrazolium chloride

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

• 동의어(들): 2,3,5-Triphenyltetrazolium chloride, TTC, TT, TPTZ, TTZ, Tetrazolium Red
• 실험식(Hill 표기법): C₁₉H₁₅ClN₄
• CAS Number: 298-96-4
• Molecular Weight: 334.80
• Beilstein: 3923356
• MDL number: MFCD00011963
• UNSPSC 코드: 41106212
• NACRES: NA.74

속성

• Quality Level: 200
• 분석: ≥98% (calculated on dried substance, perchloric acid titration)
• 형태: solid
• pH: 3.7 (20 °C, 10 g/L in H₂O)
• mp: 243 °C (decomposition)
• solubility: 150 g/L
• 벌크 밀도: 230 kg/m³
• 응용 분야: microbiology
• 저장 온도: 2-30°C
• SMILES string: [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

설명

일반 설명

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.

애플리케이션

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

분석 메모

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

안전성 정보

• 픽토그램: GHS02,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H228 - H315 - H319
• 예방조치 성명서: P210 - P240 - P241 - P264 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Sol. 1 - Skin Irrit. 2
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3