生物缓冲液

CAS号：26305-03-3

品名：胃酶抑素APepstatinA

中文别名：抑肽素;胃蛋白酶抑制剂;

英文别名：pepsininhibitors735a;peptistatinA;PEPSTATINASYNTHETIC;Isovalerylpepstatin;procidins735a;PepstainA;PEPSTATIN;pepstatineA;ahpatininc;IVA-VAL-VAL-STA-ALA-STA;

分子式：C34H63N5O9

分子量：685.892

精确质量：685.463

Psa：223.26

RTECS号：SC6155000

BRN号：2201362

EINECS号：247-600-0

MDL号：MFCD00060740

PubChem号：24898620

外观与性状：固体

密度：1.117 g/cm3

沸点：997.6ºC at 760 mmHg

熔点：233°C (dec.)(lit.)

闪点：557.1ºC

折射率：1.504

稳定性：Stable. Incompatible with strong bases, strong acids.

储存条件：2-8ºC

蒸汽压：0mmHg at 25°C

安全说明：S22-S24/25

WGK Germany：2

简介：Pepstatinisapotentinhibitorofaspartylproteases.Itisahexa-peptidecontainingtheunusualaminoacidstatine(Sta,(3S,4S)-4-amino-3-hydroxy-6-methylheptanoicacid),havingthesequenceIsovaleryl-Val-Val-Sta-Ala-Sta(Iva-Val-Val-Sta-Ala-Sta).ItwasoriginallyisolatedfromculturesofvariousspeciesofActinomycesduetoitsabilitytoinhibitpepsinatpicomolarconcentrations.PepstatinAiswellknowntobeaninhibitorofasparticproteinasessuchaspepsin,cathepsinsDandE.Exceptforitsroleasaproteinaseinhibitor,however,thepharmacologicalactionofpepstatinAuponcellsremainunclear.PepstatinAsuppressesreceptoractivatorofNF-κBligand(RANKL)–inducedosteoclastdifferentiation.PepstatinAsuppressestheformationofmultinuclearosteoclastsdose-dependently.Thisinhibitionoftheformationonlyaffectedosteoclastcells,i.e.,notosteoblast-likecells.Furthermore,pepstatinAalsosuppressesdifferentiationfrompre-osteoclastcellstomononuclearosteoclastcellsdose-dependently.ThisinhibitionseemstobeindependentoftheactivitiesofproteinasessuchascathepsinD,becausetheformationofosteoclastswasnotsuppressedwiththeconcentrationthatinhibitedtheactivityofcathepsinD.CellsignalinganalysisindicatedthatthephosphorylationofERKwasinhibitedinpepstatinA-treatedcells,whilethephosphorylationofIκBandAktshowedalmostnochange.Furthermore,pepstatinAdecreasedtheexpressionofnuclearfactorofactivatedTcellsc1(NFATc1).TheseresultssuggestthatpepstatinAsuppressesthedifferentiationofosteoclaststhroughtheblockadeofERKsignalingandtheinhibitionofNFATc1expression.

生物缓冲液

CAS号：150-25-4

品名：N,N-二羟乙基甘氨酸N,N-bis(2-hydroxyethyl)glycine

中文别名：N,N-二-羟乙基甘氨酸;N,N-双(2-羟乙基)甘氨酸;N,N-二-羟乙基甘氨酸;二羟乙甘胺酸;N,N-双(2-羟乙基)甘氨酸(Bicine);二乙醇甘氨酸;N,N-二(2-羟乙基)甘氨酸;N-二（2-羟乙基）甘氨酸;

英文别名：N,N-Bis(2-hydroxyethyl)glycine,BICINE,PEGGridScreening;2-[bis(2-hydroxyethyl)amino]aceticacid;Diethylolglycine;N,N-Dihydroxyethylglycine;Bicine;BICINE[N,N-Di(2-hydroxyethyl)glycine];BICINEbuffer;Bicene;N,N-Di(2-hydroxyethyl)glycine;N,N-Di(2-hydroxyethyl)glycine[Good'sbuffercomponent;N,N-Bis(2-hydroxyethyl)glycine;Diethanolglycine;N,N-Bis(2-hydroxyethyl)glycine(Bicine);Glycine,N,N-bis(2-hydroxyethyl)-;Diethanolglycine;Dihydroxyethylglycine;

分子式：C6H13NO4

分子量：163.172

精确质量：163.084

Psa：81.0

RTECS号：MB9700000

BRN号：1769362

EINECS号：205-755-1

MDL号：MFCD00004295

PubChem号：24891738

外观与性状：白色结晶粉末

密度：1.05g/mLat 20°C

沸点：388.5ºC at 760mmHg

熔点：190°C (dec.)(lit.)

闪点：188.8ºC

稳定性：Stable at room temperature in closed containers under normal storage and handling conditions.

储存条件：2-8ºC

安全说明：S24/25

危险类别码：R20/21/22

WGK Germany：3

海关编码：29225000

危险品标志：Xn

简介：Bicineisanorganiccompoundusedasabufferingagent.ItisoneofGood'sbuffersandhasapKaof8.35at20°C.Itispreparedbythereactionofglycinewithethyleneoxide,followedbyhydrolysisoftheresultantlactone.

用途：在生化研究中用作缓冲剂

生物缓冲液

CAS号：2646-71-1

品名：β-烟酰胺腺嘌呤二核苷酸2′-磷酸四钠盐水合物β-NADPHTETRASODIUMSALT

中文别名：还原辅酶Ⅱ四钠盐;β-烟碱腺嘌呤二核苷磷酸盐四钠盐;还原型辅酶Ⅱ四钠盐;二氢烟酰胺腺嘌呤二核苷磷酸四钠;β-三磷酸吡啶二核苷酸四钠盐;β-NADPH;

英文别名：β-NicotinamideAdenineDinucleotidePhosphateTetrasodiumSaltreducedform;NADPH;CoenzymeIIreducedtetrasodiumsalt;β-NADPHTetrasodiumSaltreducedform;NADPHTETRASODIUM;TPNH,NA4;β-Nicotinamideadeninedinucleotidephosphatetetrasodiumsalt,reducedform;NADPHNA4;NADPHtetrasodiumsalthydrate;NADPH4NA;TPNH;TPNHTetrasodiumSaltreducedform;beta-NADPH;CoenzymeIITetrasodiumSaltreducedform;β-TriphosphopyridineNucleotideTetrasodiumSaltreducedform;Dihydrofolatereductase;2'-TPNH,TETRASODIUM;Triphosphopyridinenucleotidereducedtetrasodiumsalt;Beta-NadphTetrasodiumSalt;Dihydronicotinamideadeninedinucleotidephosphatetetrasodiumsalt;TPNH2NA4;

分子式：C21H26N7Na4O17P3

分子量：833.348

精确质量：833.019

Psa：404.9

EINECS号：220-163-3

MDL号：MFCD00036263

PubChem号：24897509

密度：2.28 g/cm C

沸点：1175.1ºC at 760 mmHg

熔点：&>250ºC (dec.)

闪点：664.5ºC

储存条件：-20ºC

安全说明：S26-S37-S39

危险类别码：R36/37/38

危险品标志：Xi

简介：Oneofthebiologicallyactiveformsofnicotinicacid.DiffersfromNADbyanadditionalphosphategroupatthe2’-positionoftheadenosinemoiety.Servesasacoenzymeofhydrogenasesanddehydrogenases.Presentinlivingcellsprimarilyinthereducedform(NADPH)andisinvolvedinsyntheticreactions.

用途：通常用作电子供体，是很多氧化还原酶的辅助因子。