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Biisocrotyl

CAS No. 764-13-6 | PubChem CID 12992
Section 1. Identification
Chemical NameBiisocrotyl CAS No.764-13-6
Synonyms2,5-dimethy1-2,4-hexadiene Chinese Name2,5-二甲基-2,4-己二烯
Molecular FormulaC8H: Molecular Weight110.1968
UN No.3295 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word WARNING
Pictograms GHS02 · Flammable GHS07 · Irritant GHS09 · Environmental Hazard
Hazard Statements H226H315H319H335H401H411
Precautionary Statements P210P233P240P241P242P243P261P264P264+P265P271P280P302+P352P303+P361+P353P304+P340P305+P351+P338P319P321P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P405P501P273P391

Section 2. Hazards Identification

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

H315 (95.7%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (95.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335 (93.5%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 46 reports by companies from 5 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.

H226: Flammable liquid and vapor [Warning Flammable liquids]

H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]

H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P210, P233, P240, P241, P242, P243, P273, P280, P303+P361+P353, P370+P378, P391, P403+P235, and P501 (click each P-code to see the statement)

Section 9. Physical and Chemical Properties

Liquid; mp = 12-14 deg C; [Alfa Aesar MSDS]

17.6 [mmHg]

Optical coefficient

Refractive index

Thermal expansion coefficient

Other Classes -> Aliphatics, Unsaturated

Section 11. Toxicological Information

Neurotoxin - Acute solvent syndrome

Source: PubChem CID 12992 (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 09:37:39.
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.