2-5-Dimethyl pyrazine(CAS#123-32-0)
Nā Code Risk | R22 – Poino ke aleia R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. |
Ka wehewehe palekana | S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino. S36 – E komo i nā lole pale kūpono. |
UN ID | NA 1993 / PGIII |
WGK Kelemānia | 3 |
RTECS | UQ2800000 |
TSCA | ʻAe |
HS Code | 29339990 |
Nānā Hazard | Hoʻonanea |
Hoʻolauna
ʻO ka 2,5-dimethylpyrazine kahi hui kūlohelohe. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o 2,5-dimethylpyrazine.
ʻAno maikaʻi:
ʻO 2,5-Dimethylpyrazine kahi kala ʻole i ka aniani melemele māmā me kahi ʻala ʻala, nutty, a me ka ʻala kofe.
E hoʻohana:
Hanana:
Hiki ke hana ʻia ka hoʻomākaukau ʻana o 2,5-dimethylpyrazine e nā ʻano hana like ʻole. ʻO kahi ala maʻamau ka loaʻa ʻana o ka huahana i manaʻo ʻia e ka ammonolysis o thioacetylacetone a ukali ʻia e ka cyclization. Eia kekahi, aia nā ʻano hana synthesis ʻē aʻe, e like me ka nitroation o nā pūhui kalapona, ka hoʻemi ʻana o ka acyl oxime, etc.
ʻIke palekana:
He palekana ka 2,5-Dimethylpyrazine no nā kānaka a me ke kaiapuni ma lalo o nā kūlana hoʻohana maʻamau
- Ke hoʻopili ʻia me ka ʻili a me nā maka, hiki ke hoʻoulu ʻia ka huhū a me ka mumū, a pono e mālama i ka wā e hoʻohana ai, e like me ke komo ʻana i nā mīkina lima pale a me nā maka.
- Hōʻalo i ka hoʻohu ʻana i ke kinoea a i ʻole ka lepo i ka wā e lawelawe ai, no ka mea, ʻo ka hoʻolōʻihi ʻia ʻana e hiki ke hōʻeha i ka hanu.
- Pono e ʻalo ʻia ka pilina me nā mea ʻokiʻekiʻe a me nā ʻakika ikaika i ka wā e mālama ai i mea e pale aku ai i nā hopena ʻino.
- I ka wā e hoʻolei aku ai, e hoʻolei iā ia e like me nā kānāwai kūpono a pale i ka hoʻokuʻu pololei ʻana i ke kaiapuni.