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2-Phenylethanethiol

CAS No. 4410-99-5 | PubChem CID 78126
Section 1. Identification
Chemical Name2-Phenylethanethiol CAS No.4410-99-5
Synonyms2-phenylethane-thiol; 2-phenylethylmercaptan Chinese Name2-苯基乙硫醇
Molecular FormulaC8H10S Molecular Weight138.2
UN No. Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word WARNING
Pictograms GHS07 · Irritant
Hazard Statements H302H319
Precautionary Statements P264P264+P265P270P280P301+P317P305+P351+P338P330P337+P317P501

Section 2. Hazards Identification

This chemical does not meet GHS hazard criteria for 9.4% (11 of 117) of reports.

H302 (88.9%): Harmful if swallowed [Warning Acute toxicity, oral]

H319 (69.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

P264, P264+P265, P270, P280, P301+P317, P305+P351+P338, P330, P337+P317, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 117 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Reported as not meeting GHS hazard criteria per 11 of 117 reports by companies.

There are 4 notifications provided by 106 of 117 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.

Section 9. Physical and Chemical Properties

clear, colourless liquid

217.00 to 218.00 °C. @ 760.00 mm Hg

insoluble in water, soluble in ethanol, triacetin and heptane

(in ethanol)

1.027-1.037

1.560-1.615

EU Flavoring substances

FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food

Source: PubChem CID 78126 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 08:52:31.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.