Kodi nambala ya CAS ndi chiyani?
Nambala ya CAS, yomwe imadziwika kuti Chemical Abstracts Service Number (CAS), ndi nambala yozindikiritsa yapadera yoperekedwa ku mankhwala ndi US Chemical Abstracts Service (CAS). Mankhwala aliwonse odziwika, kuphatikiza zinthu, zosakaniza, zosakaniza, ndi ma biomolecules, amapatsidwa nambala yeniyeni ya CAS. Dongosolo la manambalali limagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, azamankhwala, ndi sayansi yazinthu ndipo cholinga chake ndi kupereka mulingo wokhazikika padziko lonse lapansi wozindikiritsa zinthu zamankhwala.
Kapangidwe ndi Tanthauzo la Nambala ya CAS
Nambala ya CAS imakhala ndi manambala atatu mumtundu wa "XXX-XX-X". Manambala atatu oyambirira ndi nambala ya serial, manambala awiri apakati amagwiritsidwa ntchito poyang'ana, ndipo nambala yotsiriza ndi cheke. Dongosolo la manambalali lapangidwa kuti liwonetsetse kuti mankhwala aliwonse ali ndi mawonekedwe ake, kupewa chisokonezo chifukwa cha mayina kapena zilankhulo zosiyanasiyana. Mwachitsanzo, nambala ya CAS yamadzi ndi 7732-18-5, ndipo nambalayi imaloza ku mankhwala omwewo mosasamala kanthu za dziko kapena mafakitale.
Kufunika kwa manambala a CAS ndi malo ogwiritsira ntchito
Kufunika kwa nambala ya CAS kumawonekera makamaka pazinthu izi:

Chizindikiritso cha mankhwala apadziko lonse: Nambala ya CAS imapereka chizindikiritso chapadziko lonse lapansi pamankhwala aliwonse. Kaya m'mabuku asayansi, kugwiritsa ntchito patent, zolemba zamalonda kapena mapepala achitetezo, nambala ya CAS imagwira ntchito ngati mulingo wofananira ndikuwonetsetsa kuti zidziwitso zonse sizisintha.

Kasamalidwe ka Data ndi Kubweza: Chifukwa cha mitundu yambiri ya mankhwala ndi mayina awo ovuta, manambala a CAS amachititsa kuti kayendetsedwe kake kasamalidwe kake kasamalidwe bwino. Ofufuza, makampani opanga mankhwala ndi mabungwe aboma amatha kupeza mwachangu komanso molondola zidziwitso zazinthu zamankhwala kudzera mu manambala a CAS.

Kutsata malamulo ndi kasamalidwe ka chitetezo: Mu kasamalidwe ka mankhwala, manambala a CAS ndi chida chofunikira chowonetsetsa kuti malamulo akutsatira. Malamulo ambiri amankhwala m'dziko ndi m'chigawo, monga Kulembetsa, Kuwunika, Kuvomerezeka ndi Kuletsa Mankhwala (REACH) ndi Toxic Substances Control Act (TSCA), amafuna manambala a CAS kuti awonetsetse kuti mankhwala ndi ovomerezeka komanso otetezeka.

Kodi ndingapeze bwanji ndikugwiritsa ntchito nambala ya CAS?
Nambala za CAS nthawi zambiri zimapezeka kudzera m'mabuku apadera kapena mabuku a mankhwala, monga CAS Registry, PubChem, ChemSpider, etc. Mukamagwiritsa ntchito nambala ya CAS, nkofunika kuonetsetsa kuti nambala yomwe yalowa ndi yolondola, chifukwa ngakhale kulakwitsa kwa chiwerengero chimodzi kungapangitse kuti chinthu chosiyana kwambiri cha mankhwala chitengedwe. Manambala a CAS amagwiritsidwa ntchito kwambiri popanga mankhwala ndi njira zofufuzira zogulira, kuwongolera zabwino, komanso kukonza ndi kuyang'anira mapepala achitetezo.
Chidule
Monga njira yozindikiritsa zinthu zamankhwala padziko lonse lapansi, nambala ya CAS imathandizira kwambiri kugwira ntchito bwino komanso kulondola kwachidziwitso chamankhwala. Manambala a CAS amatenga gawo losasinthika m'makampani opanga mankhwala, kaya mu kafukufuku ndi kupanga, kapena pakutsata malamulo ndi kasamalidwe ka chitetezo. Chifukwa chake, kumvetsetsa komanso kugwiritsa ntchito manambala a CAS moyenera ndikofunikira kwa akatswiri amakampani opanga mankhwala.