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huahana

2-Chloro-3,4-dihydroxyacetophenone CAS 99-40-1

Waiwai Kemika:

ʻĀpana Molekala C8H7ClO3
Molar Mass 186.59
ʻO ka mānoanoa 1.444±0.06 g/cm3(Wānana ʻia)
Lae hehee 174-176°C(māmā)
Lae Boling 418.7±35.0 °C(Wanamua)
Lae Flash 207°C
Ka hoʻoheheʻe Hiki ke hoʻoheheʻe ʻia i DMSO, methanol.
ʻO ke ʻano o ka mahu 1.33E-07mmHg ma 25°C
Ka nana aku Paʻa
kalakala Keokeo a Pale Beige
BRN 2092660
pKa 7.59±0.20(Wanamua)
Kūlana mālama 2-8°C
Pilikino Hoʻopaʻa maʻalahi i ka makū
Hōʻike Hōʻike 1.611

Huahana Huahana

Huahana Huahana

Pilikia a palekana

Nā hōʻailona pōʻino Xi - Hoʻohaunaele
Nā Code Risk 36/37/38 – Hoʻonanea i nā maka, ʻōnaehana 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.
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
S36 – E komo i nā lole pale kūpono.
WGK Kelemānia 3
HS Code 29252900

99-40-1 - Hōʻike ʻike

Nānā nui ʻO 3, 4-dihydroxy-2 '-chloroacetophenone he kī waena i ka synthesis o carbamot. ʻO Carbazil ka mea i kapa ʻia ʻo ke koko, adrenal pigment ammonia urea sodium salicylate, i hoʻohana nui ʻia no ka hoʻonui ʻana i ka capillary permeability i hoʻokumu ʻia e ke koko.
Hoʻohana ʻO ka waena o ka hemostatic drug anluoxue, adrenomimetic drug gashaler, etc.
hana hana e hoʻohui i ka catechol a me ka waikawa chloroacetic i kahi ipu hao maloʻo, hoʻokiʻekiʻe i ka mahana i 60 °c, a hoʻoulu, 85-90 degere C insulation 0.5h. Hoʻoluʻu i lalo o 65 ℃, e hoʻohui i ka phosphorus oxychloride, e hana i ka 60-70 ℃ no 4h, 70-80 ℃ no 4h. Ke paʻakikī ka hoʻoulu ʻana i nā reactants mānoanoa, hoʻohui i ka wai, hoʻonui i ka mahana, a hydrolyze ma 90-100 ℃ no 0.5h. Ua hoʻomaha ʻia nā kristal ma lalo o 10 ° C., a kānana ʻia. Ua holoi ʻia ka mea paʻa me ka wai a hiki i ke kū ʻole e loaʻa ai ka 2-chloro-3 ',4′-dihydroxyacetophenone.

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