Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing 12-Crown-4?
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15-crown-5
Crown ether for cation complexation
Dioxane
Solvent for cellulose esters and resins
18-crown-6
research compound
Ethylene oxide
Chemical intermediate for ethylene glycol
3,3-DIFLUORO-1-METHYLPIPERIDIN-4-AMINE DIHYDROCHLORIDE
research compound
Cyclopentanone-2-carbonitrile
research compound
2-Bromo-6-methoxybenzothiazole
research compound
2-(5-bromopyridin-2-yl)-1-(2,4-difluorophenyl)-2,2-difluoroethanone
research compound
The international HS code for 12-Crown-4 (CAS 294-93-9) is 2932.99.
2932.99
2932 99 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
1,4,7,10-tetraoxacyclododecane
XQQZRZQVBFHBHL-UHFFFAOYSA-N
C1COCCOCCOCCO1
Sourcing 12-Crown-4?
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