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此商品 | BM1 | BM5 | BM6 |
|---|---|---|---|
| application(s) cleaning products | application(s) cleaning products | application(s) cleaning products | application(s) cleaning products |
| manufacturer/tradename Paragon Scientific Ltd | manufacturer/tradename Paragon Scientific Ltd | manufacturer/tradename Paragon Scientific Ltd | manufacturer/tradename Paragon Scientific Ltd |
| shelf life limited shelf life, expiry date on the label | shelf life limited shelf life, expiry date on the label | shelf life limited shelf life, expiry date on the label | shelf life limited shelf life, expiry date on the label |
一般描述
应用
生化/生理作用
包装
重悬
免责声明
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
历史批次信息供参考:
分析证书(COA)
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
What is the structure of Product H0267, Hemoglobin A0?
Hemoglobin A0 is the major hemoglobin protein of adult hemoglobin. It is a tetrameric protein consisting of 2 alpha and 2 beta chains, each of which contains a heme moiety and iron.
What is the molecular weight of H0267 Hemoglobin A0?
Sigma has not evaluated the molecular weight of hemoglobin. Based on the reported sequence and including the weight of the 4 heme groups and 4 iron atoms, the molecular weight is approximately 64,677 Daltons. The Structure and Action of Proteins, p. 52, Harper and Row (1969).
How can Product H0267, Hemoglobin A0, be dissolved?
Hemoglobin is soluble in water at 20 mg/mL. Solutions in phosphate buffer at about neutral pH can also be prepared.
What is the solution stability of Product H0267, Hemoglobin A0?
Solutions of ferrous hemoglobin are not stable indefinitely due to the likely autoxidation of the heme group leading to the formation of the ferric derivative (methemoglobin). It is recommended to prepare solutions fresh in deaerated water or buffer. If necessary, store such prepared solutions no more than 1-2 days at 2-8°C.
Is there methemoglobin in Product H0267, Hemoglobin A0?
The product may contain a small amount of methemoglobin as described on the specification sheet.
Can Product H0267, Hemoglobin A0, be used in functional studies involving the binding and release of oxygen as a ligand?
Sigma has not validated this hemoglobin for use in functional studies. The iron in the heme moiety is in the +2 state. However, this does not mean that this hemoglobin will behave necessarily like native hemoglobin nor be useful for functional studies of the molecule.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
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