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27102

Sigma-Aldrich

柠檬酸 一水合物

puriss., meets analytical specification of Ph. Eur., BP, USP, E330, 99.5-100.5% (based on anhydrous substance), grit

别名:

2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate

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About This Item

线性分子式:
HOC(COOH)(CH2COOH)2 · H2O
CAS号:
5949-29-1
分子量:
210.14
Beilstein:
4018641
EC 号:
201-069-1
MDL编号:
MFCD00149972
UNSPSC代码:
12352100
PubChem化学物质编号:
57648219
NACRES:
NA.21

等级

puriss.

质量水平

200

方案

99.5-100.5% (based on anhydrous substance)

表单

grit

质量

meets analytical specification of Ph. Eur., BP, USP, E330

杂质

residual solvents, complies
≤0.0005% heavy metals (as Pb)
7.5-8.8% water (Karl Fischer)

灼烧残渣

≤0.05% (as SO4)

pKa 

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

痕量阴离子

chloride (Cl-): ≤50 mg/kg
oxalate (as oxalic acid): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

痕量阳离子

As: ≤1 mg/kg
Ca: ≤200 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤10 mg/kg

适用性

complies for appearance of solution
complies for identity (IR)
complies for reaction against H2SO4

官能团

carboxylic acid

SMILES字符串

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

InChI

1S/C6H8O7.H2O/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);1H2

InChI key

YASYEJJMZJALEJ-UHFFFAOYSA-N

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相关类别

一般描述

Citric acid monohydrate is an organic acid. Its molar enthalpy of solution in water has been reported to be ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061 ± 123)Jmol-1

应用

Citric acid monohydrate may be used in the diltiazem hydrochloride (drug) and melt extruded Eudragit RS PO (polymer) formulations. It improves the solubility of drug in the polymer matrix. It may be used to prepare citrate buffer for use in the intravital microscopic studies of adhesion and aggregation of platelets.

象形图

Exclamation mark
GHS07

警示用语：

Warning

危险声明

H319,H335

危险分类

Eye Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

345.0 °F - closed cup

闪点(°C)

173.9 °C - closed cup

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCK3277
BCCH5300
BCCG2090
BCCD2310
BCBT5913

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Sandra U Schilling et al.
International journal of pharmaceutics, 361(1-2), 158-168 (2008-06-28)
Incomplete drug release and particle size-dependent dissolution performance can compromise the quality of controlled release matrix systems. The objective of the current study was to investigate the ability of citric acid monohydrate (CA MH) to enhance the release of diltiazem
S Massberg et al.
The Journal of experimental medicine, 189(8), 1255-1264 (1999-04-20)
Atherosclerotic vascular lesions are considered to be a major cause of ischemic diseases, including myocardial infarction and stroke. Platelet adhesion and aggregation during ischemia-reperfusion are thought to be the initial steps leading to remodeling and reocclusion of the postischemic vasculature.
Enthalpy of solution of oxalic, succinic, adipic, maleic, malic, tartaric, and citric acids, oxalic acid dihydrate, and citric acid monohydrate in water at 298.15K.
Apelblat A.
The Journal of Chemical Thermodynamics, 18(4), 351-357 (1986)
Carolina Ganss et al.
PloS one, 10(6), e0123889-e0123889 (2015-06-16)
For preventing erosive wear in dentine, coating with adhesives has been suggested as an alternative to fluoridation. However, clinical studies have revealed limited efficacy. As there is first evidence that Sn(2+) increases bond strength of the adhesive Clearfil SE (Kuraray)
T Ulens et al.
Journal of animal science, 93(2), 627-636 (2014-12-31)
This study evaluated the effect of feed form and grinding intensity of the pig diet and the interaction between both on the particulate matter (PM) concentrations inside a pig nursery and the growth performances of weanling pigs. Four diets were
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