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33085

Supelco

Acetic anhydride

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About This Item

Formule linéaire :
(CH3CO)2O
Numéro CAS:
108-24-7
Poids moléculaire :
102.09
Numéro Beilstein :
385737
Numéro CE :
203-564-8
Numéro MDL:
MFCD00008705
Code UNSPSC :
41116105
ID de substance PubChem :
329754454

Qualité

for GC derivatization

Densité de vapeur

3.5 (vs air)

Pression de vapeur

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

Température d'inflammation spontanée

629 °F

Limite d'explosivité

10.3 %

Conditionnement

pkg of 10 × 2 mL

Indice de réfraction

n20/D 1.390 (lit.)

Point d'ébullition

138-140 °C (lit.)

Pf

−73 °C (lit.)

Solubilité

H2O: slightly soluble

Densité

1.08 g/mL (lit.)

Chaîne SMILES 

CC(=O)OC(C)=O

InChI

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

Clé InChI

WFDIJRYMOXRFFG-UHFFFAOYSA-N

Description générale

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.

Application

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.

Autres remarques

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).

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

Pictogrammes

FlameSkull and crossbonesCorrosion
GHS02,GHS06,GHS05

Mention d'avertissement

Danger

Mentions de danger

H226,H302,H314,H330

Classification des risques

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

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

120.2 °F - closed cup

Point d'éclair (°C)

49 °C - closed cup

Équipement de protection individuelle

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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
LC24436V
LC21761V
LC20088V
LC13136V
LC09249V

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Sigma-Aldrich

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Sigma-Aldrich

8.00421

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  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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