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
8.20499
4-（二甲氨基）吡啶
for synthesis
别名:
4-（二甲氨基）吡啶
关于此项目
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等級
synthesis grade
品質等級
化驗
≥99.0% (GC)
形狀
solid
自燃溫度
420 °C
效力
140 mg/kg LD50, oral (Rat)
90 mg/kg LD50, skin (Rabbit)
pH值
11 (20 °C, 60 g/L in H2O)
bp
138-140 °C/24 hPa
mp
110-112 °C
轉變溫度
flash point 124 °C
溶解度
60 g/L
體積密度
520 kg/m3
儲存溫度
2-30°C
SMILES 字串
[N+](=C1C=CNC=C1)(C)C
InChI
1S/C7H10N2/c1-9(2)7-3-5-8-6-4-7/h3-6H,1-2H3/p+1
InChI 密鑰
VHYFNPMBLIVWCW-UHFFFAOYSA-O
1 of 4
此商品 | 107700 | 39405 | PHR2925 |
|---|---|---|---|
| assay ≥99.0% (GC) | assay ≥99% | assay ≥98.0% (NT) | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| form solid | form chips, crystalline powder, flakes | form crystals, pellets | form solid |
| storage temp. 2-30°C | storage temp. room temp | storage temp. - | storage temp. 2-8°C |
| solubility 60 g/L | solubility H2O: 50 mg/mL | solubility methanol: 0.1 g/mL, clear, colorless to almost colorless | solubility - |
| pH 11 (20 °C, 60 g/L in H2O) | pH (10,23 at -0,1 g/l at 22 °C) | pH - | pH - |
應用
- 合成与催化应用：讨论4-二甲氨基吡啶(DMAP)活化的可溶性氢化钠分子载体的合成，重点说明它的催化应用潜力(Macdonald et al., 2024)。
- 酰化催化剂：讨论用DMAP盐酸盐作为惰性醇的酰化反应的可回收催化剂，反应它在合成反应中的效率促进作用和重复利用潜力(Liu et al., 2014)。
分析報告
熔程（下限值）： ≥ 110 °C
熔程（上限值）： ≤ 113 °C
鉴别（IR）：符合检验
訊號詞
Danger
危險分類
Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 1
標靶器官
Nervous system
儲存類別代碼
6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類（WGK）
WGK 3
閃點（°F）
255.2 °F
閃點（°C）
124 °C
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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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