519-67-5 Usage
General Description
2,5-Dihydroxy-3,6-bis(4-hydroxyphenyl)-2,5-cyclohexadiene-1,4-dione, also known as tannic acid, is a polyphenolic compound found in various plants, particularly in the bark and fruit of oak trees. It is commonly used in the production of ink, wine, and tanning solutions, as well as in the manufacturing of adhesives and textiles. Tannic acid is known for its antioxidant and astringent properties, and has been used medicinally to treat conditions such as diarrhea, mouth sores, and skin wounds. It is also used in the food industry as a flavoring agent and as a preservative, as it can inhibit the growth of certain bacteria and fungi. However, large doses of tannic acid can be harmful, causing stomach and intestinal irritation, and may interfere with the absorption of iron.
Check Digit Verification of cas no
The CAS Registry Mumber 519-67-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 519-67:
(5*5)+(4*1)+(3*9)+(2*6)+(1*7)=75
75 % 10 = 5
So 519-67-5 is a valid CAS Registry Number.
InChI:InChI=1/C18H12O6/c19-11-5-1-9(2-6-11)13-15(21)17(23)14(18(24)16(13)22)10-3-7-12(20)8-4-10/h1-8,19-21,24H
519-67-5Relevant articles and documents
Unusual poly(phenylacetyloxy)-substituted 1,1′:4′,1″-terphenyl derivatives from fruiting bodies of the Basidiomycete Thelephora ganbajun
Hu, Lin,Gao, Jin-Ming,Liu, Ji-Kai
, p. 3342 - 3349 (2007/10/03)
Five new poly(phenylacetyloxy)-substituted 1,1′:4′,1″-terphenyl derivatives, ganbajunins A - E (2-6) were isolated from the fruiting bodies of the Basidiomycete Thelephora ganbajun ZANG. Their structures were established by spectroscopic (including 2D-NMR
