If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
A4418
硫酸铵
for molecular biology, ≥99.0%
别名:
硫铵石
About This Item
推荐产品
等級
for molecular biology
品質等級
化驗
≥99.0%
形狀
powder
技術
affinity binding assay: suitable
protein purification: suitable
雜質
≤0.005% Insolubles
pH值
5.0-6 (25 °C, 132 g/L)
mp
>280 °C (dec.) (lit.)
溶解度
H2O: 0.667 g/mL
密度
1.77 g/mL at 25 °C (lit.)
負離子痕跡
chloride (Cl-): ≤5 ppm
正離子痕跡
Cu: ≤5 ppm
Fe: ≤5 ppm
Zn: ≤5 ppm
heavy metals (as Pb): ≤2 ppm
吸收
≤0.025 at 280 at 1 M
≤0.03 at 260 at 1 M
適合性
suitable for flow cytometry
suitable for molecular biology
應用
metabolomics
microbiology
異物活動
DNase, RNase, and protease, none detected
SMILES 字串
N.N.OS(O)(=O)=O
InChI
1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI 密鑰
BFNBIHQBYMNNAN-UHFFFAOYSA-N
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一般說明
應用
特點和優勢
- 重金属（以铅计）：≤2 ppm
- 不含 RNase/DNase和蛋白酶。
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
历史批次信息供参考:
分析证书(COA)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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