Vaccinia Immune Globulin: Transparent or slightly opalescent liquid. Is practically colorless and practically odorless. May develop a slight, granular deposit during storage.
Valacyclovir Hydrochloride: White to off-white powder. Soluble in water; insoluble in dichloromethane.
Powdered Valerian Extract: Brown, hygroscopic, powdery or easily pulverizable mass. Soluble in water to form a slightly cloudy solution; sparingly soluble in 70 percent alcohol; practically insoluble in alcohol.
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Valganciclovir Hydrochloride: White to off-white powder. Very slightly soluble in alcohol; practically insoluble in 2-propanol, in hexane, in acetone, and in ethyl acetate.USP35
Valine: White, odorless, tasteless crystals. Soluble in water; practically insoluble in ether, in alcohol, and in acetone.
Valproic Acid: Colorless to pale yellow, slightly viscous, clear liquid, having a characteristic odor. Refractive index: about 1.423 at 20. Freely soluble in 1 N sodium hydroxide, in methanol, in alcohol, in acetone, in chloroform, in benzene, in ether, and in n-heptane; slightly soluble in water and in 0.1 N hydrochloric acid.
Valrubicin: Orange to orange-red, crystalline powder. Soluble in methylene chloride, in dehydrated alcohol, in methanol, and in acetone; very slightly soluble in water, in hexane, and in petroleum ether.
Valsartan: White or almost white, hygroscopic powder. Freely soluble in anhydrous ethanol; sparingly soluble in methylene chloride; practically insoluble in water.
Vancomycin Hydrochloride: White, almost white, or tan to brown, free-flowing powder, odorless, and having a bitter taste. Freely soluble in water; insoluble in ether and in chloroform.
Vanillin: Fine, white to slightly yellow crystals, usually needle-like, having an odor and taste suggestive of vanilla. Is affected by light. Its solutions are acid to litmus. Freely soluble in alcohol, in chloroform, in ether, and in solutions of the fixed alkali hydroxides; soluble in glycerin and in hot water; slightly soluble in water. NF category: Flavors and perfumes.
Vasopressin Injection: Clear, colorless or practically colorless liquid, having a faint, characteristic odor.
Vecuronium Bromide: White or creamy white crystals, or a crystalline powder. Sparingly soluble in alcohol; slightly soluble in water and in acetone.
Hydrogenated Vegetable Oil: Type I Hydrogenated Vegetable Oil—Fine, white powder, beads, or small flakes. Type II Hydrogenated Vegetable Oil—Plastic (semi-solid) or flakes having a softer consistency than Type I. Soluble in hot isopropyl alcohol, in hexane, and in chloroform; insoluble in water. NF category: Type I Hydrogenated Vegetable Oil—Tablet and/or capsule lubricant; Type II Hydrogenated Vegetable Oil—Ointment base.
Venlafaxine Hydrochloride: Off-white to white crystalline powder. Soluble in methanol and in water.
Verapamil Hydrochloride: White or practically white, crystalline powder. Is practically odorless and has a bitter taste. Freely soluble in chloroform; soluble in water; sparingly soluble in alcohol; practically insoluble in ether.
Vidarabine: White to off-white powder. Slightly soluble in dimethylformamide; very slightly soluble in water.
Vinblastine Sulfate: White or slightly yellow, odorless, amorphous or crystalline powder. Is hygroscopic. Freely soluble in water.
Vincristine Sulfate: White to slightly yellow, odorless, amorphous or crystalline powder. Is hygroscopic. Freely soluble in water; soluble in methanol; slightly soluble in alcohol.
Vincristine Sulfate for Injection: Yellowish-white solid, having the characteristic appearance of products prepared by freeze-drying.
Vinorelbine Tartrate: White to yellow or light brown, amorphous powder. Freely soluble in water.
Vitamin A: In liquid form, a light-yellow to red oil that may solidify upon refrigeration. In solid form, has the appearance of any diluent that has been added. May be practically odorless or may have a mild fishy odor, but has no rancid odor or taste. Is unstable to air and light. In liquid form, very soluble in chloroform and in ether; soluble in absolute alcohol and in vegetable oils; insoluble in water and in glycerin. In solid form, may be dispersible in water.
Vitamin E: Practically odorless and tasteless. The alpha tocopherols and alpha tocopheryl acetates occur as clear, yellow, or greenish yellow, viscous oils. d-Alpha tocopheryl acetate may solidify in the cold. Alpha tocopheryl acid succinate occurs as a white powder; the d-isomer melts at about 75, and the dl-form melts at about 70. The alpha tocopherols are unstable to air and light, particularly when in alkaline media. The esters are stable to air and light, but are unstable to alkali; the acid succinate is also unstable when held molten. Alpha tocopheryl acid succinate is very soluble in chloroform; soluble in alcohol, in ether, in acetone, and in vegetable oils; slightly soluble in alkaline solutions; insoluble in water. The other forms of Vitamin E are insoluble in water; soluble in alcohol; miscible with ether, with acetone, with vegetable oils, and with chloroform.
Vitamin E Preparation: The liquid forms are clear, yellow to brownish red, viscous oils. The solid forms are white to tan-white granular powders. The liquid forms are soluble in alcohol; insoluble in water. Miscible with ether, with acetone, with vegetable oils, and with chloroform. The solid forms disperse in water to give cloudy suspensions.