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27109

Sigma-Aldrich

无水柠檬酸粉末

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

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About This Item

線性公式:
HOC(COOH)(CH2COOH)2
CAS號碼:
分子量::
192.12
Beilstein:
782061
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
eCl@ss:
39021801
PubChem物質ID:
NACRES:
NA.21

品質等級

化驗

99.5-100.5% (based on anhydrous substance)

形狀

grit

品質

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

expl. lim.

8 %, 65 °F

雜質

residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.5% water (Karl Fischer)

燃燒殘留物

≤0.05% (as SO4)

pKa 

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

mp

153-159 °C (lit.)

溶解度

water: 383 g/L at 25 °C

負離子痕跡

chloride (Cl-): ≤50 ppm
oxalate (as oxalic acid): ≤100 ppm
sulfate (SO42-): ≤100 ppm

正離子痕跡

As: ≤1 ppm
Ca: ≤200 ppm
Cu: ≤10 ppm
Fe: ≤10 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
Zn: ≤10 ppm

適合性

complies for appearance of solution
complies for reaction against H2SO4

SMILES 字串

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

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)

InChI 密鑰

KRKNYBCHXYNGOX-UHFFFAOYSA-N

基因資訊

human ... SRC(6714)

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相關類別

應用

以柠檬酸为测试试剂,研究新型哒嗪基哌嗪类似物 TPRV-1 抑制剂能否减轻柠檬酸和辣椒素诱发的豚鼠咳嗽反射。

生化/生理作用

膳食形式的柠檬酸可促进抗酸剂中铝的吸收。它还能促进重金属污染土壤的植物修复,并能将镉转化为更易迁移的形式。

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


分析證明 (COA)

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P Slanina et al.
Clinical chemistry, 32(3), 539-541 (1986-03-01)
Ten healthy men ingested, twice daily between meals, during each of the seven-day experimental periods: (a) citric acid (as lemon juice), (b) Al(OH)3, or (c) Al(OH)3 + citric acid. Whole blood sampled after each dietary period was analyzed electrothermally after
Y X Chen et al.
Chemosphere, 50(6), 807-811 (2003-04-12)
Adsorption and hydroponics experiments were conducted to study the role of citric acid on the phytoremediation of heavy metal contaminated soil. The results show that addition of citric acid decreased the adsorption of both lead and cadmium, such an effect
Sum Yee Leung et al.
Cough (London, England), 3, 10-10 (2007-12-25)
Cough reflex can be induced by the pepper extract capsaicin and by low pH in guinea-pig airways. Transient receptor potential vanniloid-1 (TPRV-1) is expressed in the sensory and afferent nerve fibres in airways. We hypothesized that a novel pyridazinylpiperazine analog
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
Wayne B Batchelor et al.
Circulation, 106(12), 1470-1476 (2002-09-18)
The relative anti-aggregatory effects of currently prescribed platelet glycoprotein IIb/IIIa receptor antagonists during and after percutaneous coronary intervention for acute coronary syndromes have not been established. We randomized 70 acute coronary syndrome patients undergoing percutaneous coronary intervention to receive abciximab

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Analyze Xiaoer Chiqiao Qingre granules for geniposide and forsythin using Discovery® HS C18 column and Supelclean™ LC-Alumina-N SPE.

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