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name:d-calcium pantothenate
common name:dextro-calcium pantothenate
other name:vitamin b5
cas:137-08-6
m.f.:c18h32can2o10
m.w.:476.53
vitamin b5/d-calcium pantothenate 137-08-6
properties:d-calcium pantothenate is a white powder, no smelly odor, tastes a little bitter, has hydroscopic property. Its aqueous solution shows neutrality or slightly alkaline, easy to dissolve in water, slightly solvable in ethanol, almost can not dissolve in chloroform or aether
calcium pantothenate in our body is not only involved in the metabolism of the fat, carbohydrate, protein, or maintain our physiology a necessary trace element, natural calcium pantothenate mainly exist in the liver, lean meats, whole grains, nuts and other food, can also production of calcium pantothenate by artificial means, is widely used in food, medicine, health products, feed additive, etc.
the use of calcium pantothenate in health food, nutrition fortifier and other products will result in the loss of part of calcium pantothenate in the processing process, and the proportion is relatively high. Therefore, calcium pantothenate needs to be appropriately added to meet the demand of human body for calcium pantothenate.
in the pharmaceutical industry, it can be used to treat pantothenic acid deficiency. Calcium pantothenate is usually supplied to the human body in the form of monotherapy tablets, multivitamins, and b-complex vitamins.
in the feed additive industry, calcium pantothenate can improve hair color, promote the growth and development of poultry, fish, improve their ability to adapt to the environment.
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Calcium pantothenate, also known as dextrorotatory calcium pantothenate, white or light yellow crystalline powder, odorless, sweet and bitter taste, easy to dissolve in water, glycerin, insoluble in ethanol, ether, chloroform.Its molecular formula for C18H32CaN2O10, relative molecular weight is 476, the melting point is 190 , flash point is 145 , appropriate storage temperature is 2 8 .
In the preparation of d-calcium pantothenate, formaldehyde and iso-butyraldehyde can be used as raw materials. Hydroxymethylation is carried out first, and then sodium cyanide is used for addition reaction. After acidification and hydrolysis, lactone is generated to produce gamma-butylactone and gamma-aminopropionic acid.
D - calcium pantothenate is our life, vitamin B5, belongs to a member of the B vitamins, and water soluble vitamins, is widely used in food, medicine, feed and other industries, mainly used as nutritional additives, in addition, D - calcium pantothenate as vitamin B5, are we on physical activity plays an important role in the human body.
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D-calcium pantothenate, also known as dextrorotatory calcium pantothenate, is white or light yellow crystalline powder, odorless, with sweet taste and bitter taste, soluble in water, glycerin, insoluble in ethanol, ether, chloroform.Its molecular formula for C18H32CaN2O10, molecular weight of 476.53, melting point is 190 , flash point is 145 , appropriate storage temperature is 2 8 , D - calcium pantothenate is a form of calcium pantothenate, in addition, there are L - calcium pantothenate, DL - calcium pantothenate, D - calcium pantothenate is a biological activity, and the activity of DL - only 50% calcium pantothenate, L - no bioactive calcium pantothenate.
D - calcium pantothenate using artificial synthesis, the preparation of its formaldehyde and isobutyl aldehyde can be used as raw materials, to hydroxyl methylation, the addition reaction with sodium cyanide, and then by acid hydrolysis, inner fat im into gamma butyrolactone and beta amino propionic acid reaction system of dl - pantothenic acid, it split D - pantothenic acid can be obtained, then economic cooperation into available D - calcium pantothenate.
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product name:hesperetin
nickname: (2 s) -2 - (3 - hydroxy - 4 - methoxyphenyl) - 5, 7 dihydroxy - 2, 3 - dihydro - 4 h -1 - benzopyran - 4 - one;(2 s) - 2 - (3 - hydroxy - 4 - methoxyphenyl) - 5, 7dihydroxy - 2 h - 1 - benzopyran - 4 (3 h) - one;(s) - 3 ', 5, 7 - trihydroxy -4 '- methoxyflavanone;[s, (-)] - 2, 3 - dihydro - 5, 7 - dihydroxy - 2 - (3 -hydroxy - 4 - methoxyphenyl) - 4 h - 1 - benzopyran - 4 - one;eriodictyol 4 '-monomethyl mr;(2 s) - 2, 3 - dihydro - 5, 7 - dihydroxy - 2 - (3 - hydroxy - 4- methoxyphenyl) - 4 h - 1 - benzopyran - 4 - one;5, 7, 3 '- trihydroxy - 4' -methoxyflavanone;4 '- methoxy - 3, 5, 7 - trihydroxyflavanone
cas no. : 520-33-2
molecular formula:c16h14o6
molecular weight:302.28
einecs no. :208-290-2
colour: fine whitecrystalline powder
specifications:98%
packing: 25kg/drum
melting point:230-232 c
boiling point:363.32 c (rough estimate)
density: 1.2514(rough estimate)
the refractiveindex: - 4 c = 1.8, etoh)
storageconditions: 2-8 c stored in a cool, dry, well ventilated warehouse.keep awayfrom fire and heat.avoid direct sunlight.package sealed.should be storedseparately from acid, edible chemicals, avoid by all means mixed storage.thestorage area shall be provided with suitable materials to contain the leakageand avoid contact with the oxide.
water solubility:soluble in water (partly), dilute alkalis, and ethanol (50 mg/ml).
merck: 14467 0
brn: 309850
inchikey:aionolujzlimtk aweznqclsa - n
cas databasereference
safety information
dangerous goodsmarking: xi
danger class code:36/37/38
safetyinstructions: 26-36/37/39-27-37
wgk germany: 3
customs code:29329990
hesperetin(hesperetin) is a kind of natural flavonoids, which is widely found in youngfruits of citrus genus rutaceae, such as fruits, flowers and food.it mainlycomes from the hydrolysis of hesperidin, has biological and pharmacologicalactivities, and is widely used in organic chemistry, medicine, agriculture, food and other fields.
