USP标准物质在全球130多个国家得到广泛的认可和信任。USP 法定标准物质是原料药、辅料、杂质、降解产品、食品补充剂、药典试剂和性能校正剂的样本，其特性规定极严密。在进行法定 USP-NF 测试和化验时必须使用USP 标准物质。USP标准物质也可以用作校正剂，用于溶出、粒子计数、熔点和滴定液标定，也可以用于空白和对照实验。标准物质主要用于色谱和光谱方法。除基于USP-NF的标准物质之外，USP 还向分析、临床、制药和研究实验室提供《食品化学法典》(Food Chemicals Codex)中规定的标准物质以及纯品（优质化学样品）。
Cat. No. Description CAS No.
"1,046,307 " Aztreonam E-Isomer (50 mg) n/f
"1,046,409 " Open Ring Aztreonam (25 mg) [87500-74-1]
"1,047,300 " Bacampicillin Hydrochloride (200 mg) [37661-08-8]
"1,047,503 " Bacitracin (1 g) (Susceptibility disk standard) [1405-87-4]
"1,048,007 " Bacitracin Zinc (200 mg) [1405-89-6]
"1,048,200 " Baclofen (500 mg) [1134-47-0]
"1,048,222 " Baclofen Related Compound A (50 mg)
"1,048,506 " Beclomethasone Dipropionate (200 mg) [5534-09-8]
"1,048,572 " Bemotrizinol (200 mg) [187393-00-6]
"1,048,619 " Benazepril Hydrochloride (125 mg) [86541-74-4]
"1,048,620 " "Benazepril Related Compound A (15 mg)
"1,048,630 " "Benazepril Related Compound B (15 mg)
"1,048,641 " "Benazepril Related Compound C (50 mg) [86541-78-8]
"1,048,652 " "Benazepril Related Compound D (15 mg)
"1,048,663 " "Benazepril Related Compound E (25 mg)
"1,048,674 " "Benazepril Related Compound F (15 mg) [109010-60-8]
"1,048,685 " "Benazepril Related Compound G (15 mg) [103129-58-4]
"1,049,000 " Bendro?umethiazide (200 mg) [73-48-3]
"1,050,009 " Benoxinate Hydrochloride (200 mg) [5987-82-6]
"1,050,905 " Benzaldehyde (1 mL) (List Chemical) [100-52-7]
"1,051,001 " "Benzalkonium Chloride (5 mL of approx. 10%
aqueous solution)" [8001-54-5]
"1,051,500 " Benzethonium Chloride (500 mg) [121-54-0]
"1,054,000 " Benzocaine (500 mg) [94-09-7]
"1,055,002 " Benzoic Acid (300 mg) [65-85-0]
"1,056,005 " Benzonatate (1 g) [104-31-4]
"1,056,504 " "1,4-Benzoquinone (200 mg)" [106-51-4]
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