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Molecular Depot HEPES Ultra Pure B2010032U
HEPES Ultra Pure, with extremely low levels (≤ 5 ppm) of iron, copper, zinc, lead, nickel, chromium. cobalt and cadmium. Multi-purpose buffer for most biotechnology applications. Buffering range between pH 6.8 to 8.2. Useful for buffer formulation, reagent formulation, tissue culture and more. Custom bulk orders are available upon request.
Specifications
| Catalog number: | B2010032U |
| Lot number: | Batch Dependent |
| Expiration date: | Batch Dependent |
| Volume/Weight | 50 g |
| Molecular Formula | C8H18N2O4S |
| Molecular Weight | 238.3 |
| CAS Number | 7365-45-9 |
| Application: | buffer formulation, reagent formulation, reagent stabilization |
| Shelf-Life | 2 years from date of manufacture |
| Storage: | Room temperature |
| Keywords: | 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) |
| Grade | Biotechnology grade. All components are highly pure (minimum 99%). All solutions are made with Type I ultrapure water (resistivity >18 MΩ-cm) and are filtered on a 0.22 um. |
| References | 1: Morgia F, Torti M, Montigiani M, Piscitelli C, Giallonardo A, Schimberni M, Giannini P, Sbracia M. Use of a medium buffered with N-hydroxyethylpiperazine-N- ethanesulfonate (HEPES) in intracytoplasmic sperm injection procedures is detrimental to the outcome of in vitro fertilization. Fertil Steril. 2006 May;85(5):1415-9. 2: Simpson JA, Cheeseman KH, Smith SE, Dean RT. Free-radical generation by copper ions and hydrogen peroxide. Stimulation by Hepes buffer. Biochem J. 1988 Sep 1;254(2):519-23.3: Kasraian K, Kuzniar A, Earley D, Kamicker BJ, Wilson G, Manion T, Hong J, Reiber C, Canning P. Sustained in vivo activity of recombinant bovine granulocyte colony stimulating factor (rbG-CSF) using HEPES buffer. Pharm Dev Technol. 2001 Aug;6(3):441-7.4: Habib A, Tabata M. Oxidative DNA damage induced by HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid) buffer in the presence of Au(III). J Inorg Biochem. 2004 Nov;98(11):1696-702. 5: Vasconcelos MT, Azenha MA, Lage OM. Electrochemical evidence of surfactant 6: Lomonosova EE, Kirsch M, Rauen U, de Groot H. The critical role of Hepes in 7: Kirsch M, Lomonosova EE, Korth HG, Sustmann R, de Groot H. Hydrogen peroxide 8: Cowan AI, Martin RL. Simultaneous measurement of pH and membrane potential in 9: Svajger U, Jeras M. Optimal dendritic cell differentiation in rpmi media |
All returns must be authorized by Spectra Services in order to insure proper credit and must be requested within 30 days of purchase. All returns are subject to a minimum 15% restocking charge. For returns not due to error on behalf of Spectra Services, the customer is responsible for all transportation fees related to the returned product. To ensure proper credit, each product return must include the following information:
- Customer name and address
- Purchase order number
- Spectra Services shipping order number
- Date of invoice
- Item number of returned item(s)
- Spectra Services return authorization number (RMA)
- Reason for return
Non-Returnable Goods
Unfortunately, Spectra Services is unable to accept the following returns at this time:
- Products not in completely resalable condition (including products with damaged, missing, or defaced labeling or packaging
- Chemicals, reagents, diagnostics, sterile, or any controlled products (unless products do not meet specification
- Laboratory apparatus or instruments that have been used or are without the original packaging, labeling and operating manuals
- Refrigerated products or other perishables
- Products which are not inventoried by Spectra Services and are not able to be returned to the manufacturer
- Products purchased on a special order
- Products not purchased from Spectra Services
- Products with an expired shelf life or an expiration date too short for resale
- Discontinued products
Spectra Services reserves the right to review this policy on a case-by-case basis.
Pre-Owned Products
Upon receipt of the pre-owned product(s), the customer has one week to evaluate the product to ensure it meets their expectations. If for some reason the customer decides to return the product, they may do so at any point during those seven (7) days for a full refund. No restocking fee will be assessed, however, the customer is responsible for the return shipping costs. Full credit will be issued upon receipt and inspection of the item(s) to ensure equipment was returned in the same condition it was initially shipped out in.
Important Information
All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once completed, please return the merchandise immediately as the RMA number is only active for ten (10) days from the date of issuance.
Charges associated with returning items are the responsibility of the customer unless the item(s) arrived defective, damaged, or incorrect.
Spectra Services highly recommends that return packages be insured for full value and packaged securely to prevent shipping damage.
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249 David Parkway
Ontario, NY 14519 US
Phone: 585-265-4320
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