Merck
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92816

Supelco

马来酸

Standard for quantitative NMR, TraceCERT®

Synonym(s):
失水苹果酸, 顺丁烯二酸
Linear Formula:
HO2CCH=CHCO2H
Molecular Weight:
116.07
Beilstein:
605762
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.24

等级

Standard for quantitative NMR
certified reference material
TraceCERT®

质量水平

300

描述

qNMR Standard for D2O and organic solvents (6.2 ppm)

保质期

limited shelf life, expiry date on the label

technique(s)

gas chromatography (GC): suitable
qNMR: suitable

mp

130-135 °C (lit.)

密度

1.59 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

格式

neat

SMILES string

OC(=O)\C=C/C(O)=O

InChI

1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-

InChI key

VZCYOOQTPOCHFL-UPHRSURJSA-N

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一般描述

该认证标准物质(CRM)根据ISO/IEC 17025ISO 17034生产和认证。该CRM可追溯来自NMI的原始材料,如NIST或NMIJ。
NMR定量信息已包括在认证内容中。证书上已给出不确定性和失效日期。
请访问http://www.sigma-aldrich.com下载您的证书。
马来酸可以通过苹果酸蒸馏获得。它可在强酸存在下可加热转化成富马酸。

其他说明

化学位移:6.2 ppm(化学位移可能会因实验条件略有不同)
合适的NMR溶剂:D2O、MeOD、DMSO-d6

法律信息

TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC

象形图

CorrosionExclamation mark

警示用语:

Danger

危险分类

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 1

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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