Hampton HR2-539 1.5 M Potassium sodium tartrate tetrahydrate

Hampton HR2-539 1.5 M Potassium sodium tartrate tetrahydrate

Potassium sodium tartrate tetrahydrate  四水酒石酸钾钠

APPLICATIONS 应用
Crystallization grade Potassium sodium tartrate tetrahydrate for formulating screens or for optimization 四水酒石酸钾结晶级筛选或优化

FEATURES  特征
Sterile filtered solution
Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)
无菌过滤液
在1+超纯水中配制:在25°C下电阻率为18.2兆,总有机碳<5 ppb,无细菌(<1细菌(CFU/ml)),无热原(<0.03内毒素(EU/ml)),无RNase(<0.01 ng/mL)和无DNase(<4 pg/L)

DESCRIPTION  描述
Potassium sodium tartrate tetrahydrate

Synonyms: L(+)-Tartaric acid potassium sodium salt, or Rochelle salt, or Seignette salt
KOCOCH(OH)CH(OH)COONa • 4H2O
C4H4KNaO6 • 4H2O
Mr 282.22
CAS Number [6381-59-5]
EC Number 206-156-8
Beilstein Registry Number 6113568
MDL Number MFCD00150989
PubChem Substance ID 24881874
Purity ≥ 99.5%

Measured pH Range: 8.4 – 9.1 at 25°C
Measured Conductivity Range: 81.1 – 98.5 mS/cm at 25°C
Measured Refractive Index Range: 1.37544 – 1.37666 20°C
描述
四水酒石酸钾钠

同义词:l(+)-酒石酸钾钠盐,或罗谢尔盐,或塞格奈特盐
KOCOCH(OH)CH(OH)Coona·4H2O
C4H4KNaO6 ·4H2O
Mr 282.22
核证机关编号[6381-59-5]
欧共体编号206-156-8
伯尔斯坦登记处编号6113568
MDL号码MFCD 00150989
PubChem物质ID 24881874
纯度≥99.5%

测量pH值范围:8.4-9.1℃,25°C
测量电导率范围:81.1-98.5ms/cm,25°C
测量折射率范围:1.37544-1.37666 20°C

Al ≤0.0005%
As ≤0.00001%
Ba ≤0.0005%
Bi ≤0.0005%
Ca ≤0.001%
Cd ≤0.0005%
Cl ≤0.0005%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
Li ≤0.0005%
Mg ≤0.0005%
Mn ≤0.0005%
Mo ≤0.0005%
N ≤0.002%
Ni ≤0.0005%
Pb ≤0.0005%
PO4 ≤0.001%
SO4 ≤0.005%
Sr ≤0.0005%
Zn ≤0.0005%

HR2-539
1.5 M Potassium sodium tartrate tetrahydrate
200 mL
REFERENCES 参考文献
1. Cloning, purification, crystallization and preliminary crystallographic analysis of acylphosphatase from Pyrococcus horikoshii OT3. K. Miyazono, N. Kudo and M. Tanokura. Acta Cryst. (2004). D60, 1135-1136.

2. Crystallization and preliminary X-ray analysis of a xyloglucan endotransglycosylase from Populus tremula x tremuloides. Johansson P, Denman S, Brumer H, Kallas AM, Henriksson H, Bergfors T, Teeri TT, Jones TA. Acta Crystallogr D Biol Crystallogr. 2003 Mar;59(Pt 3):535-7.

Hampton HR2-591聚乙二醇 3350 (固体)

Hampton HR2-591聚乙二醇 3350 (固体)

Polyethylene glycol 3,350 Monodisperse

APPLICATIONS  应用

  • Crystallization Polyethylene glycol 3,350 for formulating screens or for optimization

结晶聚乙二醇 3,350 用于配制筛网或优化

FEATURES  特征

  • Sterile filtered solution
  • Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)

无菌过滤溶液
在 1+ 型超纯水中配制:25°C 时电阻率为 18.2 兆欧厘米,< 5 ppb 总有机碳,无细菌(<1 细菌(CFU/ml)),无热原(<0.03 内毒素(EU/ml)) , 无 RNase (< 0.01 ng/mL) 和无 DNase (< 4 pg/µL)

DESCRIPTION

United States Pharmacopeia (USP)/National Formulary (NF), Pharmacopoea Europaea (Ph. Eur.), and Food Chemicals Codex (FCC) grade PEG 3350. For research use only. Not for diagnostic use.

Polyethylene glycol 3,350
Synonyms: PEG 3,350
H(OCH2CH2)nOH
Average Mr 3015-3685
CAS Number [25322-68-3]
EC Number 500-038-2
Merck 14,7568
MDL Number MFCD00081839
PubChem Substance ID 24898432
Polydispersity Index 1.05-1.10 (Polydispersity is a measure of the molecular weight distribution of a polymer. It is equal to Mw/Mn. That is to say, “weight-average molecular weight” divided by “number average molecular weight”.)

Aldehyde: None detected
Peroxide: None detected

HR2-527 Measured Conductivity Range: 44.0 – 55.1 µS/cm at 25°C
HR2-527 Measured Refractive Index Range: 1.40137 – 1.40213 at 20°C

描述
美国药典 (USP)/国家处方集 (NF)、欧洲药典 (Ph. Eur.) 和食品化学品法典 (FCC) 级 PEG 3350。仅供研究使用。不用于诊断用途。

聚乙二醇 3,350
同义词:PEG 3,350
H(OCH2CH2)nOH
平均先生 3015-3685
CAS号 [25322-68-3]
EC 编号 500-038-2
默克 14,7568
MDL 编号 MFCD00081839
PubChem 物质 ID 24898432
多分散指数 1.05-1.10(多分散性是衡量聚合物分子量分布的指标。它等于 Mw/Mn。也就是说,“重均分子量”除以“数均分子量”。)

醛:未检测到
过氧化物:未检测到

HR2-527 测量电导率范围:44.0 – 55.1 µS/cm at 25°C
HR2-527 测量的折射率范围:1.40137 – 1.40213 at 20°C

HR2-591 Polyethylene glycol 3,350 Monodisperse 500 grams
HR2-527 50% w/v Polyethylene glycol 3,350 Monodisperse 200 mL