Kode CAS sing 34-Dihydroxyde yaiku 139-85-5
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Jeneng Produk: |
3,4-Dihydroxybenzaldehyde |
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CAS: |
139-85-5 |
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Mf: |
C7h6O3 |
|
Mw: |
138.12 |
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EineCs: |
205-377-7 |
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File mol: |
139-85-5.mol |
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Titik lebur |
150-157 ° C (lit.) |
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Titik Giling |
213.5 ° C (kasar Prakiraan) |
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Kapadhetan |
1.2667 (kasar Prakiraan) |
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Indeks Refleksi |
1.4600 (ngira) |
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Temp panyimpenan. |
2-8 ° C |
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kelarutan |
6.3g / l |
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PKA |
PK (25 °) 7.55 |
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Formulir |
Wêdakakêna Crimstalline |
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Werna |
rada coklat |
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Kelarutan banyu |
50 g / l (20 ºc) |
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Sensitif |
Sensitif Air |
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Merck |
14,7893 |
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Brn |
774381 |
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Stabilitas: |
Stabil. Ora kompatibel Kanthi dhasar sing kuwat, agen pengoksidaan sing kuwat. |
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Rujukan Database CAS |
139-85-5 (Rujukan Database CAS) |
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Cathetan Kimia NIST |
3,4-Dihydroxybenzaldehyde (139-85-5) |
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Sistem Registri EPA |
Benzaldehyde, 3,4-Dihydroxy- (139-85-5) |
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Kode Hazard |
Xi |
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Pernyataan Resiko |
36/37 / 38-22 |
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Pratelan safety |
26-36-37 / 39 |
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WGK Jerman |
3 |
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RTEK |
Ul0380000 |
|
F |
9 |
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CATETAN HAZARD |
Irritant / Air Sensitif |
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Kode hs |
29124900 |
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Properties Kimia |
Wêdakakêna Brown |
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Metode pemurnian |
Kristal ing aldehyde saka banyu utawa toluene lan garing ing desiccator vakum liwat Koh pelet utawa lilin bengok. [BEILstEEIN 8 IV 1762.] |
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Produk Preparation |
4'-formylbenzo-15-eter 5-eter -> 3- (3,4-dihydroxyphenyl) propionic Asam -> 3 ', 4' - (Dioctylexy) Benzaldehyde -> 3 ', 4' - (Didecycyloxy) Benzaldehydo-2h-1,5-benzodioxepine-7-carbaldehida |
|
Bahan mentah |
Fosfor Pentachloride |
