Hampton HR2-539 1.5 M Potassium sodium tartrate tetrahydrate

Hampton HR2-539 1.5 M Potassium sodium tartrate tetrahydrate

Potassium sodium tartrate tetrahydrate??四水酒石酸鉀鈉

APPLICATIONS 應(yīng)用
Crystallization grade Potassium sodium tartrate tetrahydrate for formulating screens or for optimization 四水酒石酸鉀結(jié)晶級(jí)篩選或優(yōu)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)
無(wú)菌過濾液
在1+超純水中配制:在25°C下電阻率為18.2兆,總有機(jī)碳<5 ppb,無(wú)細(xì)菌(<1細(xì)菌(CFU/ml)),無(wú)熱原(<0.03內(nèi)毒素(EU/ml)),無(wú)RNase(<0.01 ng/mL)和無(wú)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
四水酒石酸鉀鈉

同義詞:l(+)-酒石酸鉀鈉鹽,或羅謝爾鹽,或塞格奈特鹽
KOCOCH(OH)CH(OH)Coona·4H2O
C4H4KNaO6?·4H2O
Mr?282.22
核證機(jī)關(guān)編號(hào)[6381-59-5]
歐共體編號(hào)206-156-8
伯爾斯坦登記處編號(hào)6113568
MDL號(hào)碼MFCD 00150989
PubChem物質(zhì)ID 24881874
純度≥99.5%

測(cè)量pH值范圍:8.4-9.1℃,25°C
測(cè)量電導(dǎo)率范圍:81.1-98.5ms/cm,25°C
測(cè)量折射率范圍: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?參考文獻(xiàn)
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 (固體)

Hampton HR2-591聚乙二醇 3350 (固體)

Polyethylene glycol 3,350 Monodisperse

APPLICATIONS? 應(yīng)用

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

結(jié)晶聚乙二醇 3,350 用于配制篩網(wǎng)或優(yōu)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)

無(wú)菌過濾溶液
在 1+ 型超純水中配制:25°C 時(shí)電阻率為 18.2 兆歐厘米,< 5 ppb 總有機(jī)碳,無(wú)細(xì)菌(<1 細(xì)菌(CFU/ml)),無(wú)熱原(<0.03 內(nèi)毒素(EU/ml)) , 無(wú) RNase (< 0.01 ng/mL) 和無(wú) 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
美國(guó)藥典 (USP)/國(guó)家處方集 (NF)、歐洲藥典 (Ph. Eur.) 和食品化學(xué)品法典 (FCC) 級(jí) PEG 3350。僅供研究使用。不用于診斷用途。

聚乙二醇 3,350
同義詞:PEG 3,350
H(OCH2CH2)nOH
平均先生 3015-3685
CAS號(hào) [25322-68-3]
EC 編號(hào) 500-038-2
默克 14,7568
MDL 編號(hào) MFCD00081839
PubChem 物質(zhì) ID 24898432
多分散指數(shù) 1.05-1.10(多分散性是衡量聚合物分子量分布的指標(biāo)。它等于 Mw/Mn。也就是說,“重均分子量”除以“數(shù)均分子量”。)

醛:未檢測(cè)到
過氧化物:未檢測(cè)到

HR2-527 測(cè)量電導(dǎo)率范圍:44.0 – 55.1 μS/cm at 25°C
HR2-527 測(cè)量的折射率范圍: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