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/418/501/product-dating-information-06-25-mk.pdf
D54702
ジクロロ酢酸
≥99%, liquid, ReagentPlus®
別名:
2,2-Dichloroacetic acid, DCA, DCAA
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製品名
ジクロロ酢酸, ReagentPlus®, ≥99%
SMILES string
OC(=O)C(Cl)Cl
InChI key
JXTHNDFMNIQAHM-UHFFFAOYSA-N
InChI
1S/C2H2Cl2O2/c3-1(4)2(5)6/h1H,(H,5,6)
vapor density
4.5 (vs air)
vapor pressure
0.19 mmHg ( 20 °C)
product line
ReagentPlus®
assay
≥99%
form
liquid
concentration
≤100%
refractive index
n20/D 1.466 (lit.)
pH
(1,2 at-129 g/l at 20 °C)
bp
194 °C (lit.)
mp
9-11 °C (lit.)
solubility
water: soluble
density
1.563 g/mL at 25 °C (lit.)
functional group
carboxylic acid
chloro
storage temp.
2-8°C
Quality Level
Gene Information
human ... ALDH1A1(216), PDK1(5163)
rat ... Pdk1(116551)
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当該品目 | 8.03541 | 91230 | 8.00412 |
|---|---|---|---|
| concentration ≤100% | concentration - | concentration - | concentration - |
| assay ≥99% | assay ≥98.0% (GC) | assay ≥99.5% (T) | assay ≥99% (acidimetric) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form liquid | form liquid | form flakes | form crystals |
| solubility water: soluble | solubility - | solubility water: soluble 81.7 g/L at 20 °C | solubility >1000 g/L |
| pH (1,2 at-129 g/l at 20 °C) | pH 1.2 (20 °C, 129 g/L in H2O) | pH - | pH <1 (20 °C, 800 g/L in H2O) |
Application
General description
Legal Information
signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Aquatic Acute 1 - Carc. 2 - Eye Dam. 1 - Lact. - Met. Corr. 1 - Repr. 1B - Skin Corr. 1A - STOT RE 2 Oral
target_organs
Brain,Liver,Testes
supp_hazards
保管分類
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
235.4 °F - closed cup
flash_point_c
113 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
資料
Warburg effect enhances glucose to lactate conversion in tumor cells, regardless of oxygen levels; impacting cancer metabolism since 1924.
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How can I determine the shelf life / expiration / retest date of this product?
1 回答-
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What is the molarity of the DCA solution and is the diluent water?
1 回答-
The concentration of this product can be determined using the lot specific purity reported in the Certificate of Analysis, the density, and the compound molecular weight. This product has a density of 1.563 g/mL and a molecular weight of 128.94 g/mol. The minimum purity is 99.0 %, thus, the molarity will vary slightly from lot to lot. The molarity can range from 12.0 M (98.5%) to 12.1 M (100%).
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 回答-
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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