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| CAS号 : | 99-50-3 |
精确质量 : | 154.02700 |
| 分子式 : | C7H6O4 |
logP : | 0.79600 |
| 分子量 : | 154.12000 |
PSA : | 77.76000 |
原儿茶酸 | |
3,4-dihydroxybenzoic acid | |
99-50-3 | |
C7H6O4 | |
154.12000 | |
77.76000 | |
0.79600 | |
154.02700 |
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白色至淡黄色晶体粉末
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410.7ºC at 760 mmHg
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197-200 °C (dec.)(lit.)
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1.559 g/cm3
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Stable. Incompatible with strong oxidizing agents, strong bases.
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Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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GHS07 | |
警告 | |
H315; H319; H335 | |
P261; P305 + P351 + P338 | |
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UL0560000
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3
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S26-S36-S37/39
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2918290000
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Xi
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R36/37/38
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
<p>1. 由香草醛经碱熔、酸化而得。 <br>2. 烟草:OR,44;FC,54;BU,26。</p> | |
<p>本品用作食品添加剂等。</p> |
