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| CAS No.: | 1401-55-4 |
|---|---|
| Name: | Tannic acid |
| Molecular Structure: | |
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|
|
| Formula: | C76H52O46 |
| Molecular Weight: | 1701.28 |
| Synonyms: | Bondtite 345;Brewtan C;Colatan GT 100;F-Tannin;FS 500M;Floctan 3;Gallotannic acid;Hifix SL;Hifix SW-A;Sunlife TN; |
| EINECS: | 215-753-2 |
| Density: | 2.12 g/cm3 |
| Melting Point: | 218 °C(lit.) |
| Boiling Point: | 862.78°C (rough estimate) |
| Flash Point: | 198 °C |
| Solubility: | 250 g/L (20 °C) in water |
| Appearance: | light yellow to tan solid with a faint odor |
| Hazard Symbols: |
 Xi, Xn
|
| Risk Codes: | 40-62-63-68-36/37/38 |
| Safety: | 24/25-36-26-36/37/39-22 |
| PSA: | 777.98000 |
| LogP: | 4.83810 |
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Specification
Tannic acid , its cas register number is 1401-55-4. It also can be called Gallotannic acid ; Gallotannin ; Galloylglucose ; Glycerite ; Quebracho ; Tannins .It is a light yellow to tan solid with a faint odor.It sinks and mixes with water. The chemical formula for commercial tannic acid is often given as C76H52O46, which corresponds with decagalloyl glucose.
Physical properties about Tannic acid are: (1)ACD/LogP: 6.184; (2)# of Rule of 5 Violations: 4; (3)ACD/LogD (pH 5.5): 6.03; (4)ACD/LogD (pH 7.4): -0.22; (5)ACD/BCF (pH 5.5): 20704.44; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 38667.75; (8)ACD/KOC (pH 7.4): 1.00; (9)#H bond acceptors: 46; (10)#H bond donors: 25; (11)#Freely Rotating Bonds: 56; (12)Index of Refraction: 1.927; (13)Molar Refractivity: 379.61 cm3; (14)Molar Volume: 799.078 cm3; (15)Polarizability: 150.489 10-24cm3; (16)Surface Tension: 203.126007080078 dyne/cm; (17)Density: 2.129 g/cm3
Uses of Tannic acid: Tannic acid is a common mordant used in the dyeing process for cellulose fibers such as cotton, often combined with alum and/or iron. Similarly tannic acid can also be used as an aftertreatment to improve wash fastness properties of acid dyed polyamide. Use of tannic acid in food applications is far more widespread and significant amounts are used as process aids in beer clarification, aroma compound in soft drinks and juices.
When you are using this chemical, please be cautious about it as the following:
1. Avoid contact with skin and eyes;
2. Wear suitable protective clothing;
3. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
3. Wear suitable protective clothing, gloves and eye/face protection;
You can still convert the following datas into molecular structure:
(1)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+/m0/s1;
(2)InChIKey=LRBQNJMCXXYXIU-QWKBTXIPSA-N;
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| domestic animals - goat/sheep | LDLo | intraperitoneal | 1gm/kg (1000mg/kg) | LIVER: "JAUNDICE, OTHER OR UNCLASSIFIED" BEHAVIORAL: FOOD INTAKE (ANIMAL) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Research in Veterinary Science. Vol. 53, Pg. 280, 1992. |
| domestic animals - goat/sheep | LDLo | oral | 1gm/kg (1000mg/kg) | KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), ZONAL" GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH | Veterinary and Human Toxicology. Vol. 37, Pg. 50, 1995. |
| guinea pig | LDLo | intravenous | 40mg/kg (40mg/kg) | "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 571, 1969. | |
| mouse | LD50 | intramuscular | 120mg/kg (120mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intramuscular | 350mg/kg (350mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intramuscular | > 1600mg/kg (1600mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intramuscular | > 1600mg/kg (1600mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intraperitoneal | 120mg/kg (120mg/kg) | Planta Medica. Vol. 52, Pg. 272, 1986. | |
| mouse | LD50 | intraperitoneal | 150mg/kg (150mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intraperitoneal | 320mg/kg (320mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intraperitoneal | 360mg/kg (360mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intravenous | 50mg/kg (50mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intravenous | 130mg/kg (130mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | intravenous | 130mg/kg (130mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | subcutaneous | 140mg/kg (140mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | subcutaneous | > 1600mg/kg (1600mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LD50 | subcutaneous | > 1600mg/kg (1600mg/kg) | Journal of Pharmacy and Pharmacology. Vol. 9, Pg. 98, 1957. | |
| mouse | LDLo | intravenous | 10mg/kg (10mg/kg) | SENSE ORGANS AND SPECIAL SENSES: HEMORRHAGE: EYE LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943. |
| mouse | LDLo | oral | 2gm/kg (2000mg/kg) | SENSE ORGANS AND SPECIAL SENSES: HEMORRHAGE: EYE LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION | Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943. |
| mouse | LDLo | subcutaneous | 75mg/kg (75mg/kg) | LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION SENSE ORGANS AND SPECIAL SENSES: HEMORRHAGE: EYE | Journal of Pharmacology and Experimental Therapeutics. Vol. 77, Pg. 63, 1943. |
| rabbit | LD50 | oral | 5gm/kg (5000mg/kg) | LUNGS, THORAX, OR RESPIRATION: CHRONIC PULMONARY EDEMA GASTROINTESTINAL: GASTRITIS | American Journal of Veterinary Research. Vol. 23, Pg. 1264, 1962. |
| rat | LD50 | oral | 2260mg/kg (2260mg/kg) | GASTROINTESTINAL: OTHER CHANGES LUNGS, THORAX, OR RESPIRATION: DYSPNEA BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 571, 1969. |
| rat | LDLo | parenteral | 1400mg/kg (1400mg/kg) | Food and Cosmetics Toxicology. Vol. 14, Pg. 565, 1976. | |
| rat | LDLo | subcutaneous | 200mg/kg (200mg/kg) | Wiener Klinische Wochenschrift. Vol. 62, Pg. 270, 1950. |