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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 22015Generated: October 27, 2026

2,5-Dimethylbenzaldehyde

Benzaldehyde, 2,5-dimethyl- · 25 DMB · Isoxylaldehyde · TIMTEC-BB SBB008435 · 2,5-DIMETHYLBENZALDEHYDE · 2,5-Dimethylbenzaldehyde-98% · 2,5-Dimethylbenzaldehyde,95% · 2,5-DIMETHYLBENZALDEHYDE 99%

https://huagongshe.com/en/chemical/22015

2,5-Dimethylbenzaldehyde molecular structure

Identifiers & Physical Properties

CAS No.5779-94-2
Molecular formulaC9H10O
Average molar mass134.17 g/mol
Monoisotopic mass134.07316494 g/mol
SMILESCc1ccc(C)c(C=O)c1
InChIKeySMUVABOERCFKRW-UHFFFAOYSA-N
PubChem CID22015
ChEBICHEBI:173203
EC No.227-303-2
DTXSIDDTXSID0075449

Chemical & Physical Properties

XLogP2.1
Topological polar surface area17.1
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds1
Heavy atoms10
Formal charge0
Complexity120
Physical DescriptionColorless to yellow liquid[MSDSonline]
Kovats Retention Index1154115911371208170516801683
Boiling point104.5-106.5 °C/14 mmHg (lit.)
Density0.95 g/mL at 25 °C (lit.)
Refractive indexn20/D 1.544(lit.)
Flash point190 °F
Storage conditionsunder inert gas (nitrogen or Argon) at 2-8°C
SolubilityAcetonitrile (Slightly), Chloroform (Slightly)Not miscible in water.
Physical stateOil
ColorColourless
Specific gravity0.95
SensitivityAir Sensitive
BRN1927303
InChI1S/C9H10O/c1-7-3-4-8(2)9(5-7)6-10/h3-6H,1-2H3
InChIKeySMUVABOERCFKRW-UHFFFAOYSA-N
SMILESCc1ccc(C)c(C=O)c1
LogP (partition coefficient)2.560 (est)
CAS DataBase Reference5779-94-2(CAS DataBase Reference)
FDA UNII6M224X1615
NIST Chemistry ReferenceBenzaldehyde, 2,5-dimethyl-(5779-94-2)
EPA Substance Registry System2,5-Dimethylbenzaldehyde (5779-94-2)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH227
GHS precautionary statementsP210e-P280a-P370+P378a-P403+P235-P501a
Personal protective equipment (PPE)Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Safety statements (S)24/25
Water hazard class (WGK)3
Customs code29122990
Storage class10 - Combustible liquids

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 75% (3 of 4) of all reports.WarningH302 (25%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (25%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (25%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (25%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 4 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Reported as not meeting GHS hazard criteria per 3 of 4 reports by companies.There is 1 notification provided by 1 of 4 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatory informationChemical: Benzaldehyde, 2,5-dimethyl-
Hazards summaryMay cause irritation[MSDSonline] See ALDEHYDES.
Hazard Classes and CategoriesAcute Tox. 4 (25%)Skin Irrit. 2 (25%)Eye Irrit. 2A (25%)STOT SE 3 (25%)
Personal protective equipment (PPE)Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
Customs code29122990
Signal wordWarning
GHS pictogramGHS07
Safety statements (S)24/25
Storage class10 - Combustible liquids
GHS hazard statementsH227
GHS precautionary statementsP210e-P280a-P370+P378a-P403+P235-P501a

Applications & Uses

Uses

2,5-Dimethylbenzaldehyde is useful for building asymmetric top molecules. 2,5-DMBA has also been used to analyze vehicle carbon emissions.

General Description

The LD vehicle′s emmision factor for 2,5-dimethylbenzaldehyde was studied.