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.

"1,083,303 " tert-Butylmethyl  ether     [1634-04-4]

"1,084,000 " Butylparaben (200  mg)  [94-26-8]

"1,085,003 " Caffeine (200  mg)  [58-08-2]

"1,086,006 " Caffeine Melting Point Standard (1 g)   [58-08-2]

"1,086,108 " Calcifediol (75  mg)    [63283-36-3]

"1,086,301 " Calcitriol (10  mg) [32222-06-3]

"1,086,312 " Calcitriol Solution (5 mL)  n/f

"1,086,334 " Calcium Acetate (1 g) (AS)  [62-54-4]

"1,086,356 " Calcium Ascorbate (200  mg) [5743-28-2]

"1,086,403 " Calcium Carbonate (1 g) (AS)    [471-34-1]

"1,086,436 " Calcium Chloride (1  g) (AS)    [10035-04-8]

"1,086,800 " Calcium Gluceptate (200  mg)    [29039-00-7]

"1,086,855 " Calcium Hydroxide (1 g) (AS)    [1305-62-0]

"1,086,888 " Calcium Lactate (1 g)   [63690-56-2]

"1,086,902 " Calcium Lactobionate (200  mg)  [110638-68-1]

"1,086,935 " Calcium Levulinate (1  g) (AS)  [5743-49-7]

"1,087,009 " Calcium Pantothenate (200  mg) (Vitamin B5) [137-08-6]

"1,087,031 " Tribasic Calcium Phosphate (1 g) (AS)   [12167-74-7]

"1,087,202 " Calcium Saccharate (200  mg)    [5793-89-5]

"1,087,359 " Calcium Stearate (2 g) (AS) [1592-23-0]

"1,087,406 " Calcium Sulfate (1 g) (AS)  [10101-41-4]

"1,087,508 " Camphor (1  g)  [464-49-3]

"1,087,701 " Candelilla Wax (250  mg)    [8006-44-8]

"1,088,001 " Candicidin (200  mg)    [1403-17-4]

"1,090,706 " Capecitabine (200  mg)  [154361-50-9]

"1,090,717 " Capecitabine Related Compound A (20  mg)    [66335-38-4]

"1,090,728 " Capecitabine Related Compound B (20  mg)    [3094-09-5]

"1,090,739 " "Capecitabine  Related  Compound  C  (20 mg)