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33085

Supelco

Essigsäureanhydrid

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About This Item

Lineare Formel:
(CH3CO)2O
CAS-Nummer:
108-24-7
Molekulargewicht:
102.09
Beilstein:
385737
EG-Nummer:
203-564-8
MDL-Nummer:
MFCD00008705
UNSPSC-Code:
41116105
PubChem Substanz-ID:
329754454

Qualität

for GC derivatization

Dampfdichte

3.5 (vs air)

Dampfdruck

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

Selbstzündungstemp.

629 °F

Expl.-Gr.

10.3 %

Verpackung

pkg of 10 × 2 mL

Brechungsindex

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp (Schmelzpunkt)

−73 °C (lit.)

Löslichkeit

H2O: slightly soluble

Dichte

1.08 g/mL (lit.)

SMILES String

CC(=O)OC(C)=O

InChI

1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3

InChIKey

WFDIJRYMOXRFFG-UHFFFAOYSA-N

Allgemeine Beschreibung

Acetic anhydride (CH3CO)2O, also known as ethanoric anhydride, is a colorless liquid with a strong pungent odor. It has a boiling point of 140°C (284°F). It is soluble in cold water, decomposes in hot water to form acetic acid, and is soluble in alcohol, chloroform and ether. It is a highly corrosive flammable liquid with harmful vapour. Exposure to acetic anhydride can occur via eye or skin contact, ingestion and inhalation.

Anwendung

Suitable for the derivatization of acetaminophen, alcohols, amines, amino acids, arginyl peptides, aryl sulfate esters, carbamates, cerebrosides, cystine and cysteine (in peptides), desmethyldoxepin, 3,4-dihydroxyphenylglycol, hydroxamic acids, hydroxyamines, n-hydroxycarbamates, 4-methoxy and 3,4-dimethoxyphenethylamine, nucleosides bases and sugars, peptides, phenolalkylamines, phenylethylamines, phenylthiohydantoin amino acid, serotonin, and tryptamines.

Sonstige Hinweise

Reagent for acetyl, o-acetyl, N-acetyl-N, permethyl acetyl, aryl acetate, ß-carboline, methyl ester, acetyl or trifluoroacetyl phenylthihydantoins, n-trifluoroacetyl, bis-trimethylsilyl, trimethylsilyl polyamino alcohol, and O-trimethylsilyl (TMS).

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Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

120.2 °F - closed cup

Flammpunkt (°C)

49 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
LC24436V
LC21761V
LC20088V
LC13136V
LC09249V

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Suche nach COA

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Slide 1 of 4

1 of 4

Salicylsäure ≥99%, FG

Sigma-Aldrich

W398500

Salicylsäure

4-Aminophenol for synthesis

Sigma-Aldrich

8.00421

4-Aminophenol

4-Aminophenol PESTANAL®, analytical standard

Supelco

35837

4-Aminophenol

Aspirin (Acetylsalicylsäure) Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1003

Aspirin (Acetylsalicylsäure)

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the advantage of acylation compared to silylation?

    Acylation, an alternative to silylation, produces stable, volatile derviatives of phenols, alcohols, and amines for analysis by GC/FID.  Acylated compounds are more stable than their corresponding silylated compounds.  

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Handbook of Corrosion Data.
Craig BD and Anderson DS.
Technology & Engineering, 108-109 (1994)
Safe Use of Chemicals: A Practical Guide.
Dikshith
Technology & Engineering, 44-44 (2008)
J M Mee et al.
Biomedical mass spectrometry, 4(3), 178-181 (1977-06-01)
A quantitative analysis of amino acids in microsamples of dried blood spots by chemical ionization mass spectrometry has been developed. Isotope ratio determination was used as the quantitating technique via multiple labelled internal standards. This procedure yields excellent precision and
Brain tryptamine in rats by a new gas chromatography-mas fragmentographic method.
J J Warsh et al.
Biochemical medicine, 18(1), 10-20 (1977-08-01)
David G Simmons et al.
BMC genomics, 9, 352-352 (2008-07-30)
The Prolactin (PRL) hormone gene family shows considerable variation among placental mammals. Whereas there is a single PRL gene in humans that is expressed by the pituitary, there are an additional 22 genes in mice including the placental lactogens (PL)
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