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2,3,5-氯化三苯基四氮唑,2,3,5-Triphenyltetrazolium chloride [TPTZ, TTZ, TTC];for microbiology, ≥98%

别名:四氮唑红;红四唑;2,3,5-三苯基-2H-氯化四氮唑;2,3,5-三苯基氯化四氮唑,Tetrazolium Red

CAS号 298-96-4 经验分子式(希尔表示法) C19H15ClN4 分子量 334.80 Beilstein/REAXYS Number 3923356 MDL number MFCD00011963
货号(SKU): 1.08380
CAS号: 298-96-4
MDL号: MFCD00011963
增值税发票 √ 免费货运 [顺丰 联邦] √
¥678.68

产品描述

General description

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.

Application

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

Analysis Note

Assay (perchloric acid titration, calculated on dried substance): ≥ 98 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (water): 245 - 248 nm
Spec. Absorptivity A 1%/1cm (λmax; 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

性质

Quality Level100
assay≥98% (calculated on dried substance, perchloric acid titration)
formsolid
application(s)microbiology: suitable (preparation)
pH3.7 (20 °C, 10 g/L in H2O)
mp243 °C (decomposition)
solubility150 g/L
bulk density230 kg/m3
SMILES string[Cl-].c1ccc(cc1)-c2nn(-c3ccccc3)[n+](n2)-c4ccccc4
InChI1S/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 keyPKDBCJSWQUOKDO-UHFFFAOYSA-M
storage conditionsStore at +5°C to +30°C.


安全信息

符号
信号词 Danger
危害声明 H228 - H315 - H319
个人防护装备 dust mask type N95 (US)EyeshieldsGloves
危害码 (欧洲) Xi
风险声明 (欧洲) 36/37/38
安全声明 (欧洲) 26-36
RIDADR NONH for all modes of transport
WGK德国 WGK 3
RTECS XF8100000
商品规格
属性名称属性值
储存温度 Storage temp.2-8°C冷藏
全球实时库存 Availability √美国St. Louis ≥ 300 | 欧洲Eur. ≥ 90 | 東京Tokyo ≥ 36 | 香港与北京 ≥ 99
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