(5H)-5-Methyl-6-7-dihydro-cyclopenta(b)pyrazine (CAS # 23747-48-0)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
| WGK Germany | 3 |
| TSCA | Yog lawm |
| HS Code | 29339900 ib |
Taw qhia
5-Methyl-6,7-dihydro-5H-cyclopentapyrazine. Nws yog ib qho dawb crystalline khoom uas zoo li siv lead ua los yog hmoov nyob rau hauv tsos. Cov khoom yog ruaj khov ntawm chav tsev kub, tab sis maj mam decomposes nyob rau hauv qhov kev txiav txim ntawm kub kub, lub teeb los yog oxygen.
5-Methyl-6,7-dihydro-5H-cyclopentapyrazine muaj ntau yam kev siv. Nws yog ib qho tshuaj tua kab zoo uas siv hauv kev ua liaj ua teb los tswj kev loj hlob thiab kev loj hlob ntawm cov kab tsuag.
Muaj ob txoj hauv kev los npaj 5-methyl-6,7-dihydro-5H-cyclopentapyrazine. Ib qho yog tau los ntawm cov tshuaj tiv thaiv condensation ntawm N-methylpyrazine, thiab tom qab ntawd cov tshuaj tiv thaiv hydrogenation yog nqa tawm kom tau txais cov khoom lag luam. Lwm qhov yog synthesized los ntawm oxidation thiab txo cov tshuaj tiv thaiv ntawm 5-benzoyl-6,7-dihydro-5H-cyclopentapyrazine.
Cov ntaub ntawv kev nyab xeeb: 5-Methyl-6,7-dihydro-5H-cyclopentapyrazine yog cov tshuaj lom. Tej zaum nws yuav muaj kev cuam tshuam rau lub cev lub paj hlwb thiab ua pa thiab ua rau tawv nqaij thiab qhov muag. Kev tiv thaiv tus kheej tsim nyog xws li hnav looj tsom iav, hnab looj tes thiab daim npog ntsej muag yuav tsum tau ua thaum ua haujlwm. Cov tshuaj yuav tsum tau muab cia rau hauv lub thawv airtight, kom deb ntawm ignition thiab oxidants. Thaum tuav cov khoom, cov plua plav thiab aerosols yuav tsum zam, thiab kev nqus pa thiab kev sib cuag ntawm daim tawv nqaij yuav tsum raug zam. Yog tias kis tau tshwm sim, yaug tam sim nrog dej ntau thiab nrhiav kev kho mob. Thaum tuav thiab siv 5-methyl-6,7-dihydro-5H-cyclopentapyrazine, ua tib zoo ua raws li cov txheej txheem kev nyab xeeb.
