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Sigma:抗壞血酸,1043003-1G 屬性: 等級: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
Sigma:水楊酸,84210-100G,CAS:69-72-7 屬性: 質(zhì)量水平:200 蒸汽密度:4.8 (vs air) 蒸汽壓:1 mmHg ( 114 °C) 等級:puriss. p.a. 測定:≥99.0% (T) 灼燒殘?jiān)?≤0.05% (as SO4) 缺失:≤0.5% loss on drying Bp:211°C (lit.)
Sigma:氣溶膠OT,86140-100G,CAS:577-11-7 屬性: 質(zhì)量水平:200 等級:purum 測定:≥96.0% (TLC) 雜質(zhì):≤2% water
Sigma:三氧化鉬,203815-5G,CAS:1313-27-5 屬性: 質(zhì)量水平:100 測定:99.97% trace metals basis 形式:powder Mp:795°C (lit.) 特色行業(yè):Battery Manufacturing
Sigma:隱色結(jié)晶紫,219215-5G,CAS:603-48-5 屬性: 形式:powder 質(zhì)量水平:200 應(yīng)用: hematology: suitable histology: suitable Mp:175-177°C (lit.) Λmax:260 nm ε (extinction coefficient):≥700 at 257-263nm
Sigma:曙紅Y,230251-25G,CAS:15086-94-9 屬性: 測定:75% (HPLC) 質(zhì)量水平:100 形式:powder 應(yīng)用:hematology: suitable histology: suitable 溶解性:spirit: soluble Λmax:524 nm 特色行業(yè):Diagnostic Assay Manufacturing 儲存溫度:room temp
Sigma:辣根過氧化物酶(POD),77332-100MG,CAS:9003-99-0 屬性: 形式:powder 質(zhì)量水平:100 質(zhì)量:lyophilized specific activity:~150U/mg 分子量:Mr~40000 溶解性: 50 mM potassium phosphate buffer, pH 6.0: 5mg/mL (0.1% BSA)