MDL：
MFCD00036463

Molecular Formula：
C8H17N2NaO4S

Molecular Weight：
260.29

Alias：
N-(2-羥乙基)哌嗪-N'-(2-乙磺酸鈉)，HEPES鈉鹽 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid sodium salt N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid) sodium salt

Product order：

Name	Specifications	Packing	Price	Delivery
HEPES sodium salt	超純級(jí) 99.5%	25g	RMB 220	Consulting service
HEPES sodium salt	99%	100g	RMB 220	Consulting service
HEPES sodium salt	99%	25g	RMB 126.5	Consulting service

Character：
純白色結(jié)晶粉末。
pH range 6.8 - 8.2
pKa (25 °C) 7.5 

Quality Standard：
項(xiàng)目                                 生化試劑級(jí)
                                        BC
純度assay                             ≥99%(T)
水分Moistrue                          ≤3%
重金屬Heavy Metals                    <5PPM

項(xiàng)目                                  超純級(jí)
純度assay                             ≥99.5%(T)
水分Moistrue                          ≤3%
氯Chloride                            ≤0.05%
硫酸根Sulfate                         ≤0.05%
重金屬Heavy Metals （as Pb)           <5PPM
pH(1%;H2O)                            4.7-6.0
A260(1M,water):                       ≤0.2
A280(1M,water):                       ≤0.2

品級(jí)Grade                               細(xì)胞培養(yǎng)級(jí)  
                                   ( for cell culture, ≥99.5% (T))
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
純度Purity                              ≥99.5% (titration)  
水溶解試驗(yàn)solubility in water           CLEAR COLORLESS，500MG/ML IN WATER
水分water                               ≤3%(K.F)
鐵Fe:                                   ≤5 ppm
重金屬heavy metals (as Pb):             ≤5 ppm
紫外吸光度UV ABSORBANCE
290nm,A                               ≤0.05(33%W/W)  
260nm,A                               ≤0.05 (0.1M H2O)
280nm,A                               ≤0.05(0.1MH2O)
DNase, RNase, protease,                 none detected
內(nèi)毒素Endotoxin                        ≤ 0.1 EU/MG
平板計(jì)數(shù)Standard plate count           ≤ 100 CFU/G
細(xì)胞培養(yǎng)測(cè)試Cell culture test          Pass

Storage：
室溫保存
用途  生物緩沖劑