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113018

Sigma-Aldrich

Crotonic acid

98%

Synonym(s):

trans-2-Butenoic acid

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500 G
$59.60
3 KG
$319.00

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Available to ship onApril 29, 2025Details

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500 G
$59.60
3 KG
$319.00

About This Item

Linear Formula:
CH3CH=CHCOOH
CAS Number:
107-93-7
Molecular Weight:
86.09
Beilstein/REAXYS Number:
1719943
EC Number:
203-533-9
MDL number:
MFCD00002701
UNSPSC Code:
12352100
PubChem Substance ID:
24847127
NACRES:
NA.22

$59.60

Available to ship onApril 29, 2025Details

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vapor density

2.97 (vs air)

Quality Level

100

vapor pressure

0.19 mmHg ( 20 °C)

assay

98%

autoignition temp.

744 °F

expl. lim.

15.1 %, 171 °F
2.2 %, 135 °F

bp

180-181 °C (lit.)

mp

70-72 °C (lit.)

solubility

H2O: soluble

density

1.027 g/mL at 25 °C (lit.)

functional group

carboxylic acid

SMILES string

[H]\C(C)=C(\[H])C(O)=O

InChI

1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+

InChI key

LDHQCZJRKDOVOX-NSCUHMNNSA-N

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General description

Crotonic acid undergoes esterification with butan-2-ol by following second order reaction kinetics[1].

Application

Crotonic acid is used in the copolymerization of crotonic acid hydrogel systems by using gamma-rays. The crosslinked copolymeric crotonic acid hydrogels release fertilizers and drugs that help to prevent environmental pollution[2].

Preparation Note

Crotonic acid dissolves in water at a concentartion of 100 mg/ml to yield a clear, colorless solution.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H318

Hazard Classifications

Eye Dam. 1

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

190.4 °F - closed cup

flash_point_c

88 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN0260
BCCM3778
BCCK6952
BCCH4516
BCCF4192

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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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