Food-tannic acid
Product name: Food-tannic acid
Molecular formula: C76H52O46
Molecular weight: 1701.18
Structural formula:
Specification | Food grade |
executive standard | FCC-IV |
content | ≥93% | ≥96% | ≥98% |
loss on drying | ≤9% | ≤9% | ≤9% |
water insoluble | ≤0.2% | ≤0.1% | ≤0.1% |
ignition residue | ≤0.1% | ≤0.1% | ≤0.1% |
heavy metal | 20ppm | 15ppm | 10ppm |
arsenic | <3ppm | <3ppm | <3ppm |
lead | <5ppm | <5ppm | <5ppm |
mercury | <1ppm | <1ppm | <1ppm |
gallic acid | ≤4% | ≤2.5% | ≤0.75% |
production scale | 600 T/Y | 300 T/Y | 100 T/Y |
packing | Cardboard drum, 25kg/ drum | Cardboard drum, 25kg/ drum | Cardboard drum, 25kg/ drum |
Character: This product is light yellow to light brown powder, with special smell and astringent taste. Soluble in 1 part water or ethanol, soluble in acetone, insoluble in chloroform or ether.
Quality indicators: comply with the food and drug administration "Food Chemistry Specification" 5th edition and codex Alimentarius Standard; U.S. Food FC-IV standard.
To use: mainly used in cosmetics, food antioxidants, clarifiers of low alcohol, oil antioxidants, but also used in bromelain food processing and other aspects.
Storage: keep away from moisture and light and store sealed
Packing: cardboard drum for external use, plastic bag for inside, 25kg net per barrel.
For tannery tannery, tannery and sheep skins. Suitable store in a cool, dry, and ventilated room. It is best to work with other tanning agents.
Molecular Mass
1701.20000
IUPAC
[2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
SMILES
C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@@H](O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(C(=C1)O)O)O)O)O