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Key Documents

T6791

Sigma-Aldrich

Trizma ®

BioXtra, pH 10.5-12.0 (1 M in H2O), ≥99.9% (titration)

同義詞:

2-氨基-2-(羟甲基)-1,3-丙二醇, THAM, Tris 碱, 三羟甲基氨基甲烷, 氨基丁三醇

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About This Item

線性公式:
NH2C(CH2OH)3
CAS號碼:
分子量::
121.14
Beilstein:
741883
EC號碼:
MDL號碼:
分類程式碼代碼:
12352104
PubChem物質ID:
NACRES:
NA.25

描述

aminopeptidase substrate

品質等級

產品線

BioXtra

化驗

≥99.9% (titration)

形狀

crystalline

儲存條件

dry at room temperature

雜質

≤0.005% Insoluble matter

燃燒殘留物(900 °C)

≤0.01% (as SO4)

損耗

≤0.5% loss on drying, 110°C

顏色

white

pH值

10.5-12.0 (1 M in H2O)

有用的pH值範圍

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)

溶解度

H2O: 1 M, colorless
water: 678 g/L at 20 °C

負離子痕跡

chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.005%

正離子痕跡

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

SMILES 字串

NC(CO)(CO)CO

吸收

≤0.020 at 280 in H2O at 1 M
≤0.025 at 260 in H2O at 1 M

應用

diagnostic assay manufacturing
life science and biopharma
sample preparation

InChI

1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2

InChI 密鑰

LENZDBCJOHFCAS-UHFFFAOYSA-N

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一般說明

Tris 碱又称 THAM 或 Trizma® 碱,作为生物缓冲剂,在各种研究应用中发挥着至关重要的作用。其 pKa 为 8.06,常用于 TAE 和 TBE 缓冲液等缓冲液配方,适合将 pH 值维持在大多数生物体的生理范围内 (pH 7.0-9.0)。但用于蛋白质研究时务必谨慎,因为 Tris 碱可能会干扰某些酶的活性。这种多功能化合物在实验室中不可或缺,可用于制备与生物体液相容的缓冲液,作为标准 pH 溶液,促进乳酸脱氢酶测定、原位杂交和细胞蛋白质提取等方案。此外,Tris 碱在生物化学和分子生物学实验室中也有应用,有助于细胞膜渗透性研究和缓冲液制备。

應用

Tris 缓冲液可用于稳定 pH 值,在癌症研究中有助于使用磺基罗丹明 B (SRB) 比色细胞毒性测定法测量细胞毒性。此外,这项研究还利用它来调节培养培养基的 pH 值,以评估代谢途径中糖皮质激素介导的葡萄糖分泌反应

特點和優勢

  • 适用于细胞膜渗透性研究以及生物化学和分子生物学研究中的缓冲液制备
  • 通过低重金属污染含量验证测试,确保适用于各种应用
  • pH 7-9 (25 °C) 范围内有效缓冲,pKa 8.1 (25 °C)
  • 通过痕量阴离子和阳离子检测测试

其他說明

所有缓冲液的 pH 值都取决于温度和浓度。Tris 缓冲液,温度每降低 1°C,pH 值增加约 0.03 个单位,每稀释十倍 pH 值降低0.03-0.05 个单位。
对于精确的应用,使用经过精心校准的 pH 计和玻璃/甘汞组合电极。
如需了解生化试剂系列的更多信息,请填写此表

法律資訊

Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

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儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


分析證明 (COA)

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