Merck
CN
All Photos(2)

Documents

Safety Information

526452

Sigma-Aldrich

2,4,5-Trimethylbenzaldehyde

90%

Sign Into View Organizational & Contract Pricing
All Photos(2)
Linear Formula:
(CH3)3C6H2CHO
CAS Number:
5779-72-6
Molecular Weight:
148.20
MDL number:
MFCD00017713
PubChem Substance ID:
24874554
NACRES:
NA.22

Assay

90%

impurities

7% 5-bromo-1,2,4-trimethylbenzene

mp

41-46 °C (lit.)

SMILES string

[H]C(=O)c1cc(C)c(C)cc1C

InChI

1S/C10H12O/c1-7-4-9(3)10(6-11)5-8(7)2/h4-6H,1-3H3

InChI key

LROJZZICACKNJL-UHFFFAOYSA-N

Related Categories

General description

Dipole moments of 2,4,5-trimethylbenzaldehyde (TMB) isolated in a durene host crystal have been reported to be 1.65 ± 0.09D (difference between the ground state and the lowest singlet) and 1.05 ± 0.06D (difference between the ground state and triplet excited states). TMB has been identified as one of the major volatile constituent present in the leave extracts of Eryngium foetidum L. Based on the phosphorescence excitation and Stark spectral data, it has been observed that a change in temperature and electric field causes a change in the dipole moment of the compound.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H319 - H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(C)

110 °C - closed cup

Regulatory Information

新产品

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

H J Fang et al.
Yao xue xue bao = Acta pharmaceutica Sinica, 25(7), 534-537 (1990-01-01)
Essential oil from the rhizome of Cyclorhiza waltonii was obtained by steam distillation. The chemical components of the oil were examined by means of capillary gas chromatography and gas chromatography-mass selective detector with HP-5 and Carbowax 20M stationary phases. Fifteen
Composition of the leaf oil of Eryngium foetidum L. from Cuba.
Pino JA, et al.
J. Essent. Oil Res., 9(4), 467-468 (1997)
Triplet state Stark spectroscopy above the phosphorescence origin of 2, 4, 5-trimethylbenzaldehyde.
Winkler IC and Hanson DM.
J. Chem. Phys. , 76(12), 5739-5745 (1982)
On the ?dual phosphorescence? from 2, 4, 5-trimethylbenzaldehyde in crystalline durene.
Moehle W and Vala M.
Chemical Physics Letters, 41(1), 149-153 (1976)
Dipole moments of the lowest excited singlet and triplet states of 2, 4, 5-trimethylbenzaldehyde in a durene host crystal.
Sheng SJ and Hanson DM.
J. Chem. Phys. , 60(2), 368-374 (1974)

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