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D106208

Sigma-Aldrich

3,4-二氢-2H-吡喃

97%

别名:

2,3,4-Trihydropyran, 2H-3,4-Dihydropyran, Dihydro-2H-pyran, Dihydropyran

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About This Item

经验公式（希尔记法）:
C5H8O
CAS号:
110-87-2
分子量:
84.12
Beilstein:
103493
EC 号:
203-810-4
MDL编号:
MFCD00006558
UNSPSC代码:
12352005
PubChem化学物质编号:
24893341
NACRES:
NA.22
价格与库存信息目前不能提供

蒸汽密度

2.9 (vs air)

质量水平

200

方案

97%

表单

liquid

折射率

n20/D 1.440 (lit.)

沸点

86 °C (lit.)

mp

−70 °C (lit.)

密度

0.922 g/mL at 25 °C (lit.)

SMILES字符串

C1COC=CC1

InChI

1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2

InChI key

BUDQDWGNQVEFAC-UHFFFAOYSA-N

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应用

3,4-二氢-2h-吡喃可用作合成以下物质的反应物：
  • 在羟基苯磺酸-甲醛树脂催化剂存在的情况下由醇生成的四氢吡喃化产物。[1].
  • 在三氟乙酸存在的情况下与吡唑反应生成的四氢吡喃衍生物。[2].
  • 在阳离子交换树脂催化下通过与芳香胺的多米诺反应生成的1,2,3,4-四氢喹啉衍生物[3]。
  • 在存在FeCl3-NaI[4]的情况下由芳基叠氮化物生成的四氢喹啉。

象形图

FlameExclamation mark
GHS02,GHS07

警示用语：

Danger

危险分类

Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B

补充剂危害

EUH019

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

5.0 °F - closed cup

闪点(°C)

-15 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB1553
STBK7382
STBK7122
STBK3111
STBK2831

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O Kenrik Duru et al.
Journal of general internal medicine, 30(11), 1645-1650 (2015-05-07)
Reducing patient cost-sharing and engaging patients in disease management activities have been shown to increase uptake of evidence-based care. To evaluate the effect of employer purchase of a disease-specific plan with reduced cost-sharing and disease management (the Diabetes Health Plan/DHP)
Synthesis and Biological Evaluation of Novel Epothilone B Side Chain Analogues
Nicolaou K, et al
ChemMedChem, 10, 1974-1979 (2015)
FeCl3-NaI mediated reactions of aryl azides with 3, 4-dihydro-2H-pyran: a convenient synthesis of pyranoquinolines
Kamal A, et al.
Tetrahedron Letters, 45, 3507-3509 (2004)
Highly selective tetrahydropyranylation/dehydropyranylation of alcohols and phenols using porous phenolsulfonic acid-formaldehyde resin catalyst under solvent-free condition
Rajkumari K, et al.
Reactive and Functional Polymers, 149, 104519-104519 (2020)
Christiaan Jardínez et al.
Journal of molecular modeling, 22(12), 296-296 (2016-11-28)
The relationship between the chemical structure and biological activity (log IC50) of 40 derivatives of 1,4-dihydropyridines (DHPs) was studied using density functional theory (DFT) and multiple linear regression analysis methods. With the aim of improving the quantitative structure-activity relationship (QSAR)
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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