MilliporeSigma
All Photos(1)

L095004

Sigma-Aldrich

Acetic anhydride

Linear Formula:
(CH3CO)2O
CAS Number:
Molecular Weight:
102.09
Beilstein:
385737
EC Number:
MDL number:

vapor density

3.5 (vs air)

Quality Level

vapor pressure

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

autoignition temp.

629 °F

expl. lim.

10.3 %

refractive index

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp

−73 °C (lit.)

solubility

H2O: slightly soluble

density

1.08 g/mL (lit.)

SMILES string

CC(=O)OC(C)=O

InChI

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

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

1 of 4

This Item
242845215163AX0080
Acetic anhydride

Sigma-Aldrich

L095004

Acetic anhydride

Acetic anhydride ACS reagent, ≥98.0%

Sigma-Aldrich

242845

Acetic anhydride

Acetic Anhydride Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

AX0080

Acetic Anhydride

vapor density

3.5 (vs air)

vapor density

3.5 (vs air)

vapor density

-

vapor density

-

vapor pressure

10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

vapor pressure

10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

vapor pressure

<0.75 mmHg ( 20 °C)

vapor pressure

4 hPa ( 20 °C)

refractive index

n20/D 1.390 (lit.)

refractive index

n20/D 1.390 (lit.)

refractive index

-

refractive index

-

bp

138-140 °C (lit.)

bp

138-140 °C (lit.)

bp

120-123 °C/20 mmHg (lit.)

bp

-

mp

−73 °C (lit.)

mp

−73 °C (lit.)

mp

48-60 °C (lit.)

mp

-73 °C

solubility

H2O: slightly soluble

solubility

H2O: slightly soluble

solubility

chloroform: soluble 100 mg/mL, clear, colorless to faintly yellow

solubility

-

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

120.2 °F - closed cup

Flash Point(C)

49 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (Example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service