更新時間:2016-06-03
L-組氨酸,純度高,品牌質(zhì)量、實驗效果好,我們保持著薄利多銷的宗旨,提供給客戶高標(biāo)準(zhǔn)的生化試劑。
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L-組氨酸
L-Histidine
Cas 號: 【71-00-1】 M D L: MFCD00064315
L-組氨酸分子式: C6H9N3O2 分子量: 155.16
別 名: (S)-2-氨基-3-(4-咪唑基)丙酸
(S)-2-Amino-3-(4-imidazolyl)propionic acid
His
L-2-Amino-3-(4-imidazolyl)propionic acid
99% 5g
99% 25g
99% 100g
99% 500g
性 狀: 無色針狀或片狀結(jié)晶。為天然的組氨酸。味甜。對空氣敏感。在227℃時軟化,287℃分解。水中溶解度為41.6 g/l (25°C),極微溶于乙醇,不溶于乙丙酮等有機溶劑,溶于無機酸。
熔點: 282 °C
[a]20/D: 12.4° (c=11,6N HCl)
質(zhì)量標(biāo)準(zhǔn): 99%:
外觀Appearance 白色結(jié)晶粉末,光照下會有顏色
紅外光譜鑒別Infrared spectrometry 和對照品匹配
含量Assay >99% (以無水物計)
干燥失重Loss on drying <0.2 % (105°C, 3 hrs)
重金屬Heavy metals (as Pb) <10 ppm
比旋度Specific rotation [a]20/D +12° ~ +12.8°(c=11, 6 N HCl)
NH4 < 100 ppm
Cl < 100 ppm
SO4 < 100 ppm
Fe < 10 ppm
透光率Transmittance >98 % (c=5, H2O, 430 nm) 1 cm cell
pH 7 - 8.5 (2% 水溶液)
其它氨基酸Foreign amino acids <0.3 % (TLC)
EP, USP ,非動物源,用于細胞培養(yǎng):
來源ORIGIN from non-animal source
外觀Appearance 白色至類白色結(jié)晶粉末
紅外鑒別IDENTIFICATION BY IR 和參考標(biāo)準(zhǔn)*
水溶解試驗solubility in water 無色溶液 0.5G/10ML水
比旋光度Specific rotation [a]20/D +12.0°~ +12.8°(20°C /EP)
+12.6 ~ +14.0 DEG (25°C /USP)
C = 11 , 6M HCL
氯Chloride ≤0.020%
銨Ammonium ≤0.02%
鐵Iron ≤ PPM
重金屬Heavy metals ≤10 PPM
砷Arsenic ≤ 1 PPM
干燥損失Loss on drying ≤0.20%
灼燒殘渣Residue on ignition ≤0.10%
茚三酮陽性物質(zhì)Ninhydrin-positive Substances(OTHER AMINO ACIDS)
CONFORMS
溶劑殘渣Residual solvents MEETS THE REQUIREMENTS
PH TEST 7.0 ~ 8.5 (2% IN WATER)
含量ASSAY (DRY BASIS) 98.5 ~ 101.0%
內(nèi)毒素Endotoxin ≤ 1 EU/MG
細胞培養(yǎng)測試Cell culture test PASS
貯 存: 密封干燥避光保存。
用途 生化研究。
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軸突生長誘向因子4(Ntn4)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Netrin 4 (Ntn4) X10038 48T/96T Homo sapiens (Human)
載脂蛋白A4(APOA4)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Apolipoprotein A4 (APOA4) X10039 48T/96T Homo sapiens (Human)
E選擇素(SELE)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Selectin, Endothelium (SELE) X10040 48T/96T Sus scrofa; Porcine (Pig)
解整合素金屬蛋白酶9(ADAM9)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for A Disintegrin And Metalloprotease 9 (ADAM9) X10041 48T/96T Homo sapiens (Human)
解整合素金屬蛋白酶9(ADAM9)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for A Disintegrin And Metalloprotease 9 (ADAM9) X10042 48T/96T Rattus norvegicus (Rat)
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音猬因子(SHH)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Hedgehog Homolog, Sonic (SHH) X10045 48T/96T Homo sapiens (Human)
白介素12(IL12)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Interleukin 12 (IL12) X10046 48T/96T Homo sapiens (Human)
補體因子D(CFD)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Complement Factor D (CFD) X10047 48T/96T Homo sapiens (Human)
毒蕈堿型膽堿受體M1(CHRM1)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Cholinergic Receptor, Muscarinic 1 (CHRM1) X10048 48T/96T Homo sapiens (Human)
白介素10(IL10)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Interleukin 10 (IL10) X10049 48T/96T Bos taurus; Bovine (Cattle)
腫瘤壞死因子α(TNFα)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Tumor Necrosis Factor Alpha (TNFa) X10050 48T/96T Bos taurus; Bovine (Cattle)
凝血因子Ⅺ(F11)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Coagulation Factor XI (F11) X10051 48T/96T Homo sapiens (Human)
絲切蛋白2(CFL2)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Cofilin 2, Muscle (CFL2) X10052 48T/96T Homo sapiens (Human)
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極低密度脂蛋白(VLDL)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Very Low Density Lipoprotein (VLDL) X10054 48T/96T Chicken (Gallus)
核因子κB抑制因子α(IκBα)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Inhibitory Subunit Of NF Kappa B Alpha (IkBa) X10055 48T/96T Rattus norvegicus (Rat)
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結(jié)合珠蛋白(Hpt)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Haptoglobin (Hpt) X10058 48T/96T Oryctolagus cuniculus (Rabbit)
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Ⅰ型膠原交聯(lián)羧基端肽(CTXⅠ)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Cross Linked C-opeptide Of Type I Collagen (CTXI) X10064 48T/96T Rattus norvegicus (Rat)
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AMP激活蛋白激酶β1(PRKAβ1)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Protein Kinase, AMP Activated Beta 1 (PRKAb1) X10068 48T/96T Danio rerio (Zebrafish)
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Ⅰ型膠原交聯(lián)羧基端肽(CTXⅠ)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Cross Linked C-opeptide Of Type I Collagen (CTXI) X10073 48T/96T Mus musculus (Mouse)
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β2-微球蛋白(β2M)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Beta-2-Microglobulin (b2M) X10078 48T/96T Rhesus monkey (Simian)
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核因子κB(NFκB)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Nuclear Factor Kappa B (NFkB) X10082 48T/96T Homo sapiens (Human)
Ⅰ類主要組織相容性復(fù)合體G(MHCG)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Major Histocompatibility Complex Class I G (MHCG) X10083 48T/96T Homo sapiens (Human)
肌鈣蛋白T(TNT)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Troponin T (TNT) X10084 48T/96T Rattus norvegicus (Rat)
二胺氧化酶(DAO)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Diamine Oxidase (DAO) X10085 48T/96T Rattus norvegicus (Rat)
高鐵血紅蛋白還原酶(MHBR)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Methemoglobin Reductase (MHBR) X10086 48T/96T Mus musculus (Mouse)
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環(huán)加氧酶2(PTGS2)檢測試劑盒(酶聯(lián)免疫吸附試驗法) ELISA Kit for Prostaglandin Endoperoxide Synthase 2 (PTGS2) X10088 48T/96T Mus musculus (Mouse)
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