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690632-38-3

690632-38-3 structure
690632-38-3 structure

Name tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate
Synonyms tert-butyl 6-bromo-4-oxospiro[3H-chromene-2,4'-piperidine]-1'-carboxylate
Density 1.4±0.1 g/cm3
Boiling Point 501.3±50.0 °C at 760 mmHg
Molecular Formula C18H22BrNO4
Molecular Weight 396.276
Flash Point 257.0±30.1 °C
Exact Mass 395.073212
PSA 55.84000
LogP 4.60
Vapour Pressure 0.0±1.3 mmHg at 25°C
Index of Refraction 1.596
Hazard Codes Xi
HS Code 2934999090

~85%

690632-38-3 structure

690632-38-3

Literature: Solvay Pharmaceuticalss GmbH Patent: US2007/117823 A1, 2007 ; Location in patent: Page/Page column 13 ;

~99%

690632-38-3 structure

690632-38-3

Literature: CEPHALON, INC.; PHARMACOPEIA, INC. Patent: WO2009/97567 A1, 2009 ; Location in patent: Page/Page column 62 ; WO 2009/097567 A1
HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%