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Key Documents

8.21902

Sigma-Aldrich

3-Methylbenzoic acid

for synthesis

Synonym(s):

3-Methylbenzoic acid, m-Toluic acid

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About This Item

Linear Formula:
3-(CH3)C6H4COOH
CAS Number:
Molecular Weight:
136.15
MDL number:
UNSPSC Code:
12352106
EC Index Number:
202-723-9
NACRES:
NA.22
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Quality Level

Assay

≥98.0% (HPLC)

form

solid

autoignition temp.

500 °C

potency

7000 mg/kg LD50, oral (Rat)

pH

3.4 (20 °C in H2O, saturated solution)

bp

263 °C/1013 hPa

mp

108-111 °C

transition temp

flash point 150 °C

solubility

1 g/L

bulk density

500 kg/m3

storage temp.

2-30°C

SMILES string

OC(=O)c1cc(ccc1)C

InChI

1S/C8H8O2/c1-6-3-2-4-7(5-6)8(9)10/h2-5H,1H3,(H,9,10)

InChI key

GPSDUZXPYCFOSQ-UHFFFAOYSA-N

Application

  • Laccase-mediated Oligomerization: Explores the enzymatic oligomerization of 4-hydroxybenzoic acid which could lead to new materials with improved stability and functionality, useful in material science and drug delivery systems (Slagman et al., 2016).

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 110 °C
Melting range (upper value): ≤ 113 °C
Identity (IR): passes test

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

302.0 °F

Flash Point(C)

150 °C


Certificates of Analysis (COA)

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Questions

1–2 of 2 Questions  
  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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