China (Mainland)
HEPES;4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid CAS NO.7365-45-9
- FOB Price: USD: 28.00-32.00 /Kilogram Get Latest Price
- Min.Order: 25 Kilogram
- Payment Terms: L/C,T/T,Other
- Available Specifications:
High Purity Grade(25-100)KilogramHigh Purity Grade(100-1000)Kilogram
- Product Details
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Quick Details
- ProName: HEPES;4-(2-Hydroxyethyl)piperazine-1-e...
- CasNo: 7365-45-9
- Molecular Formula: C8H18N2O4S
- Appearance: Free flowing white powder
- Application: it is an important PH stable reagent i...
- DeliveryTime: 7-30days
- PackAge: 25KG / DRUM
- Port: Shanghai;Nanjing
- ProductionCapacity: 10 Metric Ton/Month
- Purity: 99.8%
- Storage: 2-8°C
- Transportation: 3-7days after we get the payment from ...
- LimitNum: 25 Kilogram
- Grade: Pharma Grade,Other
- Physical State:: Solid
- Melting Point:: 234 °C (dec.)
- MDL Number:: MFCD00006158
Superiority
Best quality with best price.
ISO Certificate
Our main market is America,Europe,and Asia.We have some famous clients like MERCK,Bristol-Myers Squibb,DOW,SANYO,Fisher Scientific,Sigma-ALDRICH
We own manufacture bases in Shandong,Zhejiang and other places. We have a professional, efficient sales team. Our R & D strength is strong and we cooperate with a number of colleges and universities at home and abroad long-term .80 percent of our products are exported. We have experience of mansy years in biochemical ,electronic chemical field and have a good reputation.
Under strict quality control of the production of pharmaceutical raw materials in accordance with the GMP standard ICH Q7A, we passed the ISO9001 quality system assessment in 2002,we always have professionalism, integrity, innovation, cooperation of the business philosophy in the domestic and international customers services.
The center has advanced instruments and equipments from domestic and abroad. Now there are 2 doctors who major in biology with oversea educational background, 3 masters who major in medicine and organic synthesis, several engineers. The center periodically keeps communications with the colleagues from domestic and abroad to know the latest information of scholarly research. The center mainly dedicates to the research on biomedicine and biochemistry. The present products, such as fluorescent label reagent, color development reagent, dye reagent, biological buffer, enzyme for diagnosis, are very welcomed by the clients from domestic and abroad.
Details
Product ID: TQBB015
Name: HEPES
Specification/price: 25KG / DRUM
Rank: Ultra Pure Grade
Company: Nanjing Search Biotech Co.,Ltd
CAS: 7365-45-9
English Name: 4-(2-hydroxyerhyl)piperazine-1-erhanesulfonic acid
Molecular Formula: C8H18N2O4S
Molecular Wt:238.31
Appearance:Free flowing white powder
Assay(potertiometric cal on dry substance):99.8％
|
Appearance |
Free flowing white powder |
|
|
Assay (potertiometric cal on dry substance) |
≥99.5% |
100.4% |
|
Color ( 1M solution) |
Pass test |
OK |
|
PKa at 20℃ |
7.35-7.69 |
7.52 |
|
Residue on Ignition |
≤0.1% |
0.01% |
|
Loss on drying (105 ℃,3 hours) |
≤1% |
0.03% |
|
ultraviolet absobance/260nm(1mol/L,1cm) |
≤0.05 |
0.029 |
|
ultraviolet absobance/280nm(1mol/L,1cm) |
≤0.05 |
0.021 |
|
Heavy metals（Pb） |
≤0.001% |
0.0001% |
|
Heavy metals（Fe） |
≤0.0005% |
0.00005% |
|
Sulfate |
≤0.05% |
0.01% |
Enterprise Standard
Application: it is an important PH stable reagent in biotic experiments.
Appropriate PH is obtained by mixing mild acid and its conjugate base.
Many biological responses happen in neutral condition (usually PH 6-8),
so the buffering range is required to be in PH 6-8. In addition, the form
of acid-base of buffer should not chelate with some metallic ions.
Characteristics of biological buffer:
1. Strong water-solubility;
2. Compatibility of the acid-base dissociation balance;
3. Low membrance penetration rate;
4. Low metal chelating ability;
5. High chemical stability;
6. Low absorption in ultraviolet and visible region.