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
P56003
Pyrazine
≥99%
Synonym(s):
1,4-Diazabenzene, 1,4-Diazine, Paradiazine, Piazine, p-Diazine
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Available to ship TODAY | $35.00 $29.75 |
10 g | Available to ship TODAY | $50.00 |
25 g | Available to ship TODAY | $87.40 $65.55 |
About This Item
$29.75
List Price$35.00Save 15%Available to ship TODAYDetails
Quality Segment
assay
≥99%
form
crystals
bp
115-116 °C (lit.)
mp
50-56 °C (lit.)
density
1.031 g/mL at 25 °C (lit.)
SMILES string
c1cnccn1
InChI
1S/C4H4N2/c1-2-6-4-3-5-1/h1-4H
InChI key
KYQCOXFCLRTKLS-UHFFFAOYSA-N
General description
Application
- As a bridging ligand in the synthesis of Cu(II) linear chain coordination complexes.
- To prepare Cu(I) derived coordination polymers, which are used in the synthesis of metal-organic frameworks (MOFs).
1 of 1
This Item | |||
|---|---|---|---|
| description ≥99% | description ≥99%, FG | description 98% | description ≥98.0% |
| assay ≥99% | assay ≥99% | assay 98% | assay ≥98.0% |
| Quality Level 100 | Quality Level 300, 400 | Quality Level 100 | Quality Level 100 |
| density 1.031 g/mL at 25 °C (lit.) | density 1.031 g/mL at 25 °C (lit.) | density 1.103 g/mL at 25 °C (lit.) | density 1.016 g/mL at 25 °C (lit.) |
| mp 50-56 °C (lit.) | mp 50-56 °C (lit.) | mp −8 °C (lit.) | mp 19-22 °C (lit.) |
| bp 115-116 °C (lit.) | bp 115-116 °C (lit.) | bp 208 °C (lit.) | bp 123-124 °C (lit.) |
| form crystals | form - | form - | form - |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Flam. Sol. 1
Storage Class
4.1B - Flammable solid hazardous materials
WGK
WGK 3
Flash Point (°F)
131.0 °F - closed cup
Flash Point (°C)
55 °C - closed cup
PPE (personal protective equipment)
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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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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