
產(chǎn)品分類
Products產(chǎn)品中心/ PRODUCTS
Sigma:透明質(zhì)酸鈉,75043-10MG,CAS:9067-32-7 屬性: 分子量:130,000-150,000 質(zhì)量水平:100 適用性:conforms to structure for Infrared spectrum 運(yùn)輸:wet ice 儲(chǔ)存溫度:?20°C 應(yīng)用: suitable as substrate for hyaluronidase
Sigma:聚乙二醇6000,81255-250G,CAS:25322-68-3 屬性: 質(zhì)量水平:200 產(chǎn)品線:BioUltra 形式:solid 分子量:Mr5000-7000 雜質(zhì):insoluble matter, passes filter test ≤20mg/kg peroxides (as H2O2)
Sigma:聚乙二醇1000,81189-100G,CAS:25322-68-3 屬性: 質(zhì)量水平:200 等級(jí):for molecular biology 產(chǎn)品線:BioUltra 形式:solid 分子量:Mr950-1050 pH值(酸堿度):5.5-7.0 (25°C, 50mg/mL in H2O)
Sigma:甲酸鈉,71539-500g,CAS:141-53-7 屬性: 產(chǎn)品線:BioUltra 質(zhì)量水平:200 測(cè)定:≥99.0% (NT) 雜質(zhì):insoluble matter, passes filter test pH值(酸堿度):7.0-8.5 (25°C, 1M in H2O) Mp:259-262°C (lit.) 溶解性:H2O: 1M at20°C, clea
Sigma:萘草胺,33371-100MG,CAS:132-66-1 屬性: 質(zhì)量水平:100 等級(jí):analytical standard 產(chǎn)品線:PESTANAL® 保質(zhì)期:limited shelf life, expiry date on the label 應(yīng)用:HPLC: suitable NMR: suitable gas chromatography (GC): suitable
Sigma:溴化鉀,60089-100G,CAS: 7758-02-3 屬性: 質(zhì)量水平:100 蒸汽壓:0.01 mmHg ( 20 °C) 1 mmHg ( 795 °C) 產(chǎn)品線:BioUltra 測(cè)定:≥99.5% (AT) 雜質(zhì):insoluble matter, passes filter test ≤0.001% total nitrogen (N)
Sigma:抗壞血酸,1043003-1G 屬性: 等級(jí):pharmaceutical primary standard 形式:neat manufacturer/tradename:USP 應(yīng)用:HPLC: suitable Mp:190-194°C (dec.) 特色行業(yè):Pharmaceutical (small molecule) 格式:neat
Sigma:司盤80,85548-250ML,CAS:1338-43-8 屬性: 描述:non-ionic 質(zhì)量水平:100 分子量:428.60g/mol 折射率:n20/D 1.48 (lit.) 粘度:1000-2000mPa.s(20°C) HLB值:4.3±1.0 密度:0.99g/mLat 20°C 0.986g/mLat 25°C (lit.)
Sigma:馬鈴薯淀粉,85642-25g,CAS:9005-25-8 屬性: 生物來(lái)源:potato 質(zhì)量水平:100 質(zhì)量:acc. to Zulkowsky (starch, treated with glycerol at 190°C) 灼燒殘?jiān)骸?% (as SO4) 缺失:≤10% loss on drying pH值(酸堿度):6.5-7.5 (25°C, 2% in H2O)
Sigma:D-山梨醇,85529-250G,CAS:50-70-4 屬性: 質(zhì)量水平:200 蒸汽密度:1 (vs air) 蒸汽壓:0.1 mmHg ( 25 °C) 產(chǎn)品線:BioUltra 測(cè)定:≥99.0% (HPLC) 形式:powder 旋光性:[α]20/D ?1.5±0.3°, c =10% in H2O 雜質(zhì):insoluble matter, passes filter