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
B85307
2,3-Butanedione
97%
Synonym(s):
Biacetyl, Diacetyl
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₪289.00
₪560.00
₪896.00
About This Item
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Product Name
2,3-Butanedione, 97%
form
liquid
InChI key
QSJXEFYPDANLFS-UHFFFAOYSA-N
InChI
1S/C4H6O2/c1-3(5)4(2)6/h1-2H3
SMILES string
CC(=O)C(C)=O
vapor density
3 (vs air)
vapor pressure
52.2 mmHg ( 20 °C)
assay
97%
autoignition temp.
345 °C
refractive index
n20/D 1.394 (lit.)
bp
88 °C (lit.)
density
0.981 g/mL (lit.)
storage temp.
2-8°C
Quality Level
Gene Information
human ... ACHE(43), BCHE(590), CES1(1066)
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Related Categories
1 of 4
This Item | 632759 | 11038 | 31550 |
|---|---|---|---|
| assay 97% | assay 97% | assay ≥99.0% (GC) | assay ≥98.0% (N), ≥99.0% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form liquid | form solid | form - | form solid |
| storage temp. 2-8°C | storage temp. - | storage temp. - | storage temp. - |
| density 0.981 g/mL (lit.) | density - | density 0.981 g/mL (lit.) | density - |
| bp 88 °C (lit.) | bp - | bp 88 °C (lit.) | bp 185-186 °C (lit.) |
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
target_organs
Respiratory system
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
44.6 °F - closed cup
flash_point_c
7 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, Heavyweight Gloves, Safety Clothing, type ABEK (EN14387) respirator filter
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How can I determine the shelf life / expiration / retest date of this product?
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I need a food grade version of diacetyl. Is this version food grade?
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The product is not food grade. A food grade version of this product is not currently supplied.
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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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