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Home > Analytical Chemistry > Standard (Find 98 items)

Analytical Chemistry

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Standard

ALLOPURINOL IMPURITY C

(1346604-13-4)
An impurity of Allopurinol (A547300).

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Atorvastatin Related Compound A (20 mg) (Desfluoro impurity,or (3R,5R)-7-[3-(phenylcarbamoyl)-2-isopropyl-4,5-diphenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acidcalcium salt)

(433289-83-9)
Desfluoro Atorvastatin is an impurity in the synthesis of Atorvastatin (A791750), a selective, competitive HMG-CoA reductase inhibitor. Atorvastatin is the only drug in its class specfically indicated for lowering both elevated LDL-cholesterol and triglycerides in patients with hypercholesterolemia.

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Aminomebendazole

(52329-60-9)
A novel heterocyclic NF-κB inhibitor used in pharmaceutical compositions.

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Apovincamine

(4880-92-6)

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Anthanthrene

(191-26-4)

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Arresten

(1084-65-7)
diuretic, antihypertensive

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Acetylsulfadiazine

(127-74-2)
A major metabolite of Sulfadiazine

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Azinphos-methyl

(86-50-0)
Azinphos-methyl is used to control a wide range of both sucking and chewing insects and spider mites in a wide range of crops. Insecticide for fruit. Use may be restricted. Nonsystemic insecticide and acaricide for control of insects pests in blueberry, grape, maize, vegetable, cotton and citrus crops.

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Arsenobetaine

(64436-13-1)
Calibration instruments and devices; evaluation methods; working standards; quality assurance/quality control

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Amiprophos-methyl

(36001-88-4)
Organophosphorus herbicide. It can control a variety of annual weeds in paddy fields and drylands, such as barnyard grass, amaranth, quinoa, cricket grass, maimailiang, cattle felt, ragloss, arthropod, etc. It is suitable for rice, tomato, lettuce, cabbage, peanut, Sugarcane, onion, carrot, cucumber and other crops. The amount of application is 1.25～5.0kg/hm2.

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In the analysis work, it is often necessary to use a compound of good quality and accurate content, which is used as a comparison for detection control, or used to calibrate the instrument. This compound is called a standard. Or standard. The standard product refers to the standard substance used to determine the potency of biological products. The production department must provide the standard product expressed in units (μ) of its potency when it is approved as a quality standard for biological products. According to the application, the standard products for inspection can be divided into biological standard products for biological verification of biological products, endocrine drugs, antibiotics and so on.

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