4-Methylcatechol

1.37

1.37

251

65

65 °C

0.0028 [mmHg]

White or light brown solid; [Alfa Aesar MSDS]

Solid

Positive

-0.28

2.7

Agilent XCT

Electrospray ionization

formic acid (5.3nM)

1246.1

1295.1；1293.6；1293；1293.4；1294

2727

121 Ų [M-H]- [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]

121.5 Ų [M-H]-

Warning

H302 (11.9%): Harmful if swallowed [Warning Acute toxicity, oral]；H312 (10.2%): Harmful in contact with skin [Warning Acute toxicity, dermal]；H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]；H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H335 (98.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, 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 59 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；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.

4-Methylcatechol: Does not have an individual approval but may be used under an appropriate group standard

A skin and strong eye irritant; Harmful by inhalation; Toxic by ingestion and skin absorption; [Alfa Aesar MSDS] See Catechol.

Acute Tox. 4 (11.9%)；Acute Tox. 4 (10.2%)；Skin Irrit. 2 (100%)；Eye Irrit. 2A (100%)；STOT SE 3 (98.3%)

4-Methylcatechol: Does not have an individual approval but may be used under an appropriate group standard

4-methyl-hydroquinone is a known human metabolite of 4-Methylphenol.

Naturally occurring or synthetic substances that inhibit or retard oxidation reactions. They counteract the damaging effects of oxidation in animal tissues.

Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.

Drugs intended to prevent damage to the brain or spinal cord from ischemia, stroke, convulsions, or trauma. Some must be administered before the event, but others may be effective for some time after. They act by a variety of mechanisms, but often directly or indirectly minimize the damage produced by endogenous excitatory amino acids.