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Merck

PHR1071

柠檬酸

Pharmaceutical Secondary Standard; Certified Reference Material

别名:

无水柠檬酸粉末

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1 G

$214.00

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关于此项目

线性分子式:
HOC(COOH)(CH2COOH)2
化学文摘社编号:
分子量:
192.12
NACRES:
NA.24
PubChem Substance ID:
eCl@ss:
39021801
UNSPSC Code:
41116107
EC Number:
201-069-1
MDL number:
Beilstein/REAXYS Number:
782061

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产品名称

柠檬酸, Pharmaceutical Secondary Standard; Certified Reference Material

InChI key

KRKNYBCHXYNGOX-UHFFFAOYSA-N

InChI

1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)

SMILES string

OC(=O)CC(O)(CC(O)=O)C(O)=O

grade

certified reference material
pharmaceutical secondary standard

agency

traceable to Ph. Eur. A1202000
traceable to USP 1134368

API family

citric acid

CofA

current certificate can be downloaded

expl. lim.

8 %, 65 °F

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

mp

153-159 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-30°C

Quality Level

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此商品
1134368A120200094676
application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

format

neat

format

neat

format

neat

format

neat

Quality Level

300

Quality Level

-

Quality Level

-

Quality Level

300

grade

certified reference material, pharmaceutical secondary standard

grade

pharmaceutical primary standard

grade

pharmaceutical primary standard

grade

certified reference material, TraceCERT®

storage temp.

2-30°C

storage temp.

-

storage temp.

2-8°C

storage temp.

-

Application

无水柠檬酸可以用作参考标准品,通过分光光度法对生物流体中存在的柠檬酸浓度进行测定。[1]
无水柠檬酸可用作药物参考标准品,用于通过各种色谱技术测定药物制剂[2][3][4]和牛奶样品[4]中的分析物。
这些二级标准品是经过检验的认证标准物质(CRM)。它们适用于多种分析应用,包括但不限于药物释放测试、药物的定性和定量分析方法开发、食品和饮料质量控制检测以及其他标定应用。

General description

用于质量控制的药物二级标准品,为制药实验室和制造商制备内部工作标准品提供了一种方便、高性价比的替代方案。
柠檬酸是药物制剂中的一种常见成分。由于它与碳酸盐或碳酸氢盐结合产生的起泡作用,它可用于抗酸剂和洁齿剂中。柠檬酸也可用作缓冲剂,它有助于悬浮液的分散,从而确保活性成分的稳定性并增强抗氧化剂的功效。[2]

Other Notes

在我们的NMR在线平台ChemisTwin®上可以找到本品对应的数字化标准物质。您可使用ChemisTwin®上的数字等效品鉴定您的样品并进行定量分析(使用数字化外标)。可查看该物质的NMR谱图,只需点击几次鼠标,就能进行在线样品比对。欢迎点击了解更多,开启免费试用之旅。
要查看该材料的分析证书示例,请在下面的栏位中输入LRAB7603。这只是一个示例证书,可能不是您收到的批次。
该认证标准物质(CRM)根据ISO 17034ISO/IEC 17025进行生产和认证。有关此CRM使用的所有信息均可在分析证书上找到。

Analysis Note

These secondary standards offer multi-traceability to the USP and EP (PhEur) primary standards, where they are available.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


分析证书(COA)

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A simplified photometric method for the determination of citric acid in biological fluids
Ettinger.HR, et al.
The Journal of Biological Chemistry, 199(2), 531-536 (1952)
Development and validation of an assay for citric acid/citrate and phosphate in pharmaceutical dosage forms using ion chromatography with suppressed conductivity detection
DeBorba BM, et al.
Journal of Pharmaceutical and Biomedical Analysis, 36(3), 517-524 (2004)
High performance liquid chromatography method for determination of methyl-5-benzoyl-2-benzimidazole carbamate (mebendazole) and its main degradation product in pharmaceutical dosage forms
Al-Kurdi Z, et al.
Talanta, 50(5), 1089-1097 (1999)
Liquid chromatographic determination with fluorescence detection of B6 vitamers and riboflavin in milk and pharmaceuticals
Gatti R and Gioia MG
Analytica Chimica Acta, 538(1-2), 135-141 (2005)
Maria José Garcia-Fernandez et al.
Biofouling, 29(3), 261-271 (2013-02-27)
Prevention and management of wound infections receive a lot of attention, since the presence of micro-organisms interferes with the wound-healing process. The aim of this work was to use cyclodextrins (CDs) to endow hydrogels and gauzes with the ability to

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