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Merck

16201

Sigma-Aldrich

单宁酸

puriss., powder

别名:

单宁, 没食子鞣酸

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About This Item

经验公式(希尔记法):
C76H52O46
CAS号:
分子量:
1701.20
Beilstein:
8186396
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
PubChem物質ID:
NACRES:
NA.21

等級

puriss.

品質等級

形狀

powder

自燃溫度

980 °F

品質

meets analytical specification of USP

雜質

dextrines, gum matters, in accordance
resinous matters, in accordance

燃燒殘留物

≤0.1% (as SO4)

損耗

≤9% loss on drying, 105 °C, 2 h

mp

218 °C (lit.)

溶解度

H2O: soluble 1 gm in 0.35ml
glycerol: soluble 1gm in 1 ml (warm)
acetone: very soluble
alcohol: freely soluble (Diluted)
alcohol: slightly soluble (Dehydrated)
alcohol: very soluble
benzene: insoluble
carbon disulfide: insoluble
carbon tetrachloride: insoluble
chloroform: insoluble
diethyl ether: insoluble
hexane: insoluble
petroleum ether: insoluble

應用

metabolomics
vitamins, nutraceuticals, and natural products

SMILES 字串

Oc1cc(cc(O)c1O)C(=O)Oc2cc(cc(O)c2O)C(=O)OC[C@H]3O[C@@H](OC(=O)c4cc(O)c(O)c(OC(=O)c5cc(O)c(O)c(O)c5)c4)[C@H](OC(=O)c6cc(O)c(O)c(OC(=O)c7cc(O)c(O)c(O)c7)c6)[C@@H](OC(=O)c8cc(O)c(O)c(OC(=O)c9cc(O)c(O)c(O)c9)c8)[C@@H]3OC(=O)c%10cc(O)c(O)c(OC(=O)c%11cc(O)c(O)c(O)c%11)c%10

InChI

1S/C76H52O46/c77-32-1-22(2-33(78)53(32)92)67(103)113-47-16-27(11-42(87)58(47)97)66(102)112-21-52-63(119-72(108)28-12-43(88)59(98)48(17-28)114-68(104)23-3-34(79)54(93)35(80)4-23)64(120-73(109)29-13-44(89)60(99)49(18-29)115-69(105)24-5-36(81)55(94)37(82)6-24)65(121-74(110)30-14-45(90)61(100)50(19-30)116-70(106)25-7-38(83)56(95)39(84)8-25)76(118-52)122-75(111)31-15-46(91)62(101)51(20-31)117-71(107)26-9-40(85)57(96)41(86)10-26/h1-20,52,63-65,76-101H,21H2/t52-,63-,64+,65-,76+/m1/s1

InChI 密鑰

LRBQNJMCXXYXIU-PPKXGCFTSA-N

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一般說明

丹宁酸是最简单的可水解单宁。在丹宁酸的化学结构中其核心含有一个葡萄糖分子,其通过脂肪族酯键连接10个没食子酰基(galloyl)。TA是含量最丰富的天然多酚之一,颜色为无色至黄色,并具有涩味。 它的来源有橡树皮、栗树、毒芹(hemlock)、红树林等。

應用

丹宁酸可用于:
  • 作为参考标准品用于通过紫外/可见分光光度计测定橡树根皮丹宁甲醇提取物中的总可水解单宁
  • 作为球状体培养基中可渗透血脑屏障的胞转抑制药物。
  • 作为冲洗剂用于测试其对土壤金属离子、总有机碳和有机物质的作用。
  • 作为树状细胞通过内吞机制摄取游离卵清蛋白(OVA)的抑制剂。

生化/生理作用

丹宁酸有多种药理特性,例如抗氧化、消炎、抗菌和抗肿瘤作用。它还具有抗衰老、伤口愈合和神经保护活性。TA 传统上是用作食品、皮革、粘合剂和制药行业中的鞣剂。它是一种用于构建聚合物网络的天然交联剂,可用于设计生物医学水凝胶。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

390.2 °F

閃點(°C)

199 °C


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