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The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

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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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100 ML
CN¥444.94

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100 ML
CN¥444.94

About This Item

线性分子式:
HOC(COOH)(CH2COOH)2
CAS号:
77-92-9
分子量:
192.12
Beilstein:
782061
EC 号:
201-069-1
MDL编号:
MFCD00011669
UNSPSC代码:
12352106
eCl@ss:
39021801
PubChem化学物质编号:
329752978
NACRES:
NA.21

CN¥444.94

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质量水平

200

方案

99.5-100.5% (based on anhydrous substance)

表单

grit

质量

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

expl. lim.

8 %, 65 °F

杂质

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

灼烧残渣

≤0.05% (as SO4)

pKa 

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

mp

153-159 °C (lit.)

溶解性

water: 383 g/L at 25 °C

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此商品
A8456SBR0001516967
Pefabloc® SC certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

15633

Pefabloc® SC

4-(2-Aminoethyl)benzenesulfonyl fluoride hydrochloride ≥97.0% (HPLC)

A8456

4-(2-Aminoethyl)benzenesulfonyl fluoride hydrochloride

AEBSF Ready Made Solution

SBR00015

AEBSF Ready Made Solution

Trimethoprim certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

16967

Trimethoprim

technique(s)

gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

gas chromatography (GC): suitable

application(s)

forensics and toxicology
pharmaceutical (small molecule)

application(s)

-

application(s)

-

application(s)

forensics and toxicology
pharmaceutical (small molecule)

format

neat

format

-

format

-

format

neat

Quality Level

300

Quality Level

300

Quality Level

200

Quality Level

300

grade

certified reference material, TraceCERT®

grade

-

grade

-

grade

certified reference material, TraceCERT®

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

应用

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。[1]

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。[2]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。[3]

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)

Not applicable

闪点(°C)

Not applicable

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    STBK6636
    STBK6336
    SDBB1594
    SDBB0858
    STBL2004

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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
    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
    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
    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
    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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