CasNo.7365-45-9,High Quality HEPES,(7365-45-9) Suppliers

1 Gram	FOB Price: USD 1.0000

Min.Order :1 Gram
Purity: 98% HPLC
Payment Terms : L/C,D/A,D/P,T/T,

Keywords

7365-45-9 HEPES HEPES Price

Quick Details

Appearance:White powder
Application:pharmaceutical intermediates
PackAge:1kg or 25Kg drum
ProductionCapacity:3000|Metric Ton|Year
Storage:Store in dry, dark and ventilated place
Transportation:By air or by sea. Prompt delivery

Superiority:

Qingdao Sigma Chemical Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

Our Laboratory is located in shandong province. There are 15 experts in our research team. Talented personnel and well-equipped laboratory makes rigorous and professional quality control possible. Lyphar Biotech is equipped with various detection devices, such as HPLC, GC, Spectrophotometer, AAS, Polarimeter, Auto titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on.

The aim of QDSIGMA is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

QDSIGMA has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".QDSIGMA has 21 subsidiaries and holding companies.

We promise our customer following items

1.Reasonable price:
2.Low moq:No worry about the low moq, our moq is 1 gram or lower.
3.Good and efficient service,Fast Delivery
4.Super-good quality

Details:

Factory price 99.5% min 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid HEPES 7365-45-9 for cosmetic raw material

Product name:4-(2-hydroxyerhyl) piperazine-1-erhanesulfonic acid(HEPES)

Cas:7365-45-9

Molecular formula: C8H18N2O4S

Molecular Weight: 238.31

Spec.: 25KG

Grade: Biochemical Grade

Quality Standard:

Appearance: pure white powder

Content: ≥99.5%

Chroma (1M reagent solution): Pass the test

PKa at 20℃:7.4-7.7

Heavy metals: ≤5ppm

Sulfate: ≤0.05%

Dry weight loss (105 ℃, 3 hours): ≤1%

Ultraviolet absorbance/260nm (1mol/l,1cm): ≤0.5

Ultraviolet absorbance/280nm (1mol/l,1cm): ≤0.5

Ultraviolet absorbance/440nm (1mol/l,1cm): ≤0.2

Product applications: In biological experiments, it is an important ph-stability reagent, usually choosing the appropriate weak acid and its conjugate base mixture to obtain the appropriate ph value. Most biological reactions occur under neutral conditions, the general ph is selected between 6-8 and the buffer effective buffer range is also required between 6-8. In addition, the Acid-base form of the buffer is required not to occur with certain metal ions chelation.

Product	HEPES		Brand
CAS No	7365-45-9		Xinglu
Batch no.	15111101	Quantity:	1250kg
Date of manufacturing:	Nov,11,2015	Date of test:	Nov,11,2015
Parameters	Specification		Results
Appearance	White crystalline powder		Confirmed
Purity	99.5%min		99.9%
Solubility(1Maq)	Clear,colorless solution		Confirms
PH(1% aq)	4.80-5.60		5.48
Heavy Metals, ppm	10.0max		Conforms
Loss on drying %	1max		0.2
Residue on ignition	0.1%		Conforms
Ultraviolet absorbance 260nm (1M aq)	0.1max		0.064
Ultraviolet absorbance 280nm (1M aq)	0.07max		0.054
Iron Ion,ppm	5max		Conforms
Sulfate%	0.05max		Conforms
Storage	Room temperature with sealed well
Conclusion:	Comply to the enterprise standard