3.4-Dihydrocoumarin CAS No.: 119-84-6
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau 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 - Hnav khaub ncaws tiv thaiv zoo. |
| WGK Germany | 3 |
| RTECS | MW5775000 |
| TSCA | Yog lawm |
| HS Code | 2932980 ib |
| Toxicity | Tus nqi ntawm qhov ncauj LD50 hauv nas tau tshaj tawm tias yog 1.65 g / kg (1.47-1.83 g / kg) (Moreno, 1972a). Tus mob dermal LD50 tus nqi hauv luav tau tshaj tawm tias> 5 g / kg (Moreno, 1972b). |
Taw qhia
Dihydrovanilin. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm dihydrovanillin:
Zoo:
- Cov tsos mob: Dihydrovanillin tsis muaj xim rau yellowish crystals.
- Solubility: Soluble hauv cov kuab tshuaj organic thiab me ntsis soluble hauv dej.
- tsw: muaj ib tug iab-qab zib aroma, zoo ib yam li vanilla los yog ci.
Siv:
Txoj kev:
Kev npaj ntawm dihydrovanillin feem ntau tau txais los ntawm phenolic condensation cov tshuaj tiv thaiv. Cov kauj ruam tshwj xeeb suav nrog cov tshuaj tiv thaiv ntawm benzaldehyde thiab acetic anhydride catalyzed los ntawm alkali thiab cua sov nyob rau hauv cov xwm txheej tsim nyog los tsim dihydrovanillin.
Cov ntaub ntawv kev nyab xeeb:
- Dihydrovanillin feem ntau suav hais tias yog ib qho chaw muaj kev nyab xeeb, tab sis nws yuav ua rau muaj kev fab tshuaj rau qee tus neeg.
- Rau qhov siab dua ntawm dihydrovanillin, kev sib cuag nrog daim tawv nqaij yuav ua rau khaus. Kev ceev faj tsim nyog xws li hnab looj tes, tsom iav, thiab lwm yam, yuav tsum hnav thaum tuav cov khoom sib xyaw.
- Thaum lub sijhawm khaws cia thiab siv, kev sib cuag nrog cov neeg ua haujlwm oxidizing muaj zog lossis cov khoom siv hluav taws xob yuav tsum raug zam kom tsis txhob muaj xwm txheej.
