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
270970
吡啶
anhydrous, 99.8%
选择规格
| 规格/货号 | 是否有货 | 价格 |
|---|
关于此项目
grade
anhydrous
Quality Segment
vapor density
2.72 (vs air)
vapor pressure
10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
assay
99.8%
form
liquid
autoignition temp.
899 °F
expl. lim.
12.4 %
impurities
<0.003% water, <0.005% water (100 mL pkg)
evapn. residue
<0.0005%
color
colorless
refractive index
n20/D 1.509 (lit.)
pH
~8.81 (20 °C)
bp
115 °C (lit.)
mp
−42 °C (lit.)
density
0.978 g/mL at 25 °C (lit.)
SMILES string
C1=CN=CC=C1
InChI
1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
InChI key
JUJWROOIHBZHMG-UHFFFAOYSA-N
General description
Application
- 烷基三氯硅烷至三甲氧基烷基硅烷，而其可用作制备烷基硅酸盐的前体。
- 1-茚满酮至1-茚满酮肟，而其可进行还原性环扩展以形成四氢喹啉。
它也可用于在不使用过渡金属催化剂的情况下催化卤代芳烃的硼酸化反应以形成芳基硼酸盐。
Packaging
1 of 1
此商品 | |||
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| assay 99.8% | assay ≥99.5% (GC) | assay ≥99% | assay ≥99.0% |
| grade anhydrous | grade ACS reagent, puriss. p.a. | grade - | grade ACS reagent |
| form liquid | form liquid | form liquid | form liquid |
| expl. lim. 12.4 % | expl. lim. 12.4 % | expl. lim. 12.4 % | expl. lim. 12.4 % |
| refractive index n20/D 1.509 (lit.) | refractive index n20/D 1.509 (lit.) | refractive index n20/D 1.509 (lit.) | refractive index n20/D 1.509 (lit.) |
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Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
存储类别
3 - Flammable liquids
flash_point_f
68.0 °F - closed cup
flash_point_c
20 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Is this compound derived from plants?
1 answer-
This product is typically synthetically manufactured and not plant-derived. However, the origin may vary on a lot-to-lot basis. More information may be found in the lot-specific Certificate of Origin. Please navigate to the ‘DOCUMENTATION’ section of the Product Detail Page to access a Certificate under the ‘Certificate of Origin’ tab:
https://www.sigmaaldrich.com/product/sial/270970#product-documentationHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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