CAS 766-39-2; 2,3-二甲基马来酸酐; dimethyl-maleic anhydrid

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货号

品牌

产品名称

规格

包装、参考价格

D806603

MACKLIN

二甲基马来酸酐

98%

28元/5g; 56元/25g; 198元/100g;

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储存：2~8°C,干燥
状态：白色到灰色,米黄色粉末,晶体和/或块状

D3473

TCI

2,3-Dimethylmaleic Anhydride

>98.0%(GC)(T)

140元/5G; 495元/25G;

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基本信息

纯度/分析方法	>98.0%(GC)(T)
分子式/分子量	C₆H₆O₃ = 126.11
外观与形状(20℃)	固体
储存在惰性气体下	存放于惰性气体之中
应避免的情况	湿气 (分解)
Reaxys-RN	112044
PubChem物质ID	87559390
MDL编号	MFCD00005523

技术规格

Appearance	White to Orange to Green powder to crystal
Purity(GC)	min. 98.0 %
Purity(Methanolysis Method)	min. 98.0 %
Melting point	93.0 to 97.0 ℃

物性(参考值)

熔点	95 ℃
沸点	119 ℃/20 mmHg
水溶性	微溶
溶解性(易溶于)	苯,醇,氯仿,乙醚
溶解性(可溶于)	甲苯

安全信息

图形或危害标志
信号词	警告
危险性说明	H302 : 吞咽有害。 H315 : 造成皮肤刺激。 H319 : 造成严重眼刺激。
防范说明	P501 : 将内装物/容器送到批准的废物处理厂处理。 P270 : 使用本产品时不要进食、饮水或吸烟。 P264 : 作业后彻底清洗皮肤。 P280 : 戴防护手套/戴防护眼罩/戴防护面具。 P302 + P352 : 如皮肤沾染：用水充分清洗。 P337 + P313 : 如仍觉眼刺激：求医/就诊。 P305 + P351 + P338 : 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。 P362+P364 : 脱掉沾污的衣服，清洗后方可重新使用。 P332 + P313 : 如发生皮肤刺激：求医/就诊。 P301 + P312 + P330 : 如误吞咽：如感觉不适，呼叫急救中心/医生。漱口。

相关法规

RTECS#

ON4025000

202665

J&K

2,3-Dimethylmaleic Anhydride

96%

324元/5G; 1291元/25G;

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基本信息

分子式	C₆H₆O₃
分子量	126.11
熔点	93-96
沸点	223
MDL编码	MFCD00005523
Beilstein	112044
EINECS 编号	212-165-8

安全信息

图形或危害标志
提示语	Warning
危险说明	H302 H319
防范说明	P305+P351+P338
WGK	3
RTECS	ON4025000
TSCA	是

L12919

Alfa Aesar

2,3-Dimethylmaleic Anhydride

97%

877元/5g; 3688元/25g;

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应用
2,3-Dimethylmaleic anhydride acts as a reagent in the preparation of maleimides. It is also employed as an amino group protecting agent for superoxide dismutase. Further, it serves as a reactant in the dissociation of ribosomal proteins. In addition to this, it is used in the preparation of dimethylmaleic acid dimethyl ester.

备注
Moisture sensitive. Incompatible with strong oxidizing agents, strong acids and strong bases.

基本信息

MDL
MFCD00005523

EINECS
212-165-8

分子式
C₆H₆O₃

分子量
126.11

熔点
93-96°

沸点
222-223°

灵敏度
Moisture Sensitive. Store under Nitrogen. Ambient temperatures.

形态
Crystalline

溶解性
Soluble in ethanol, ether and chloroform. Slightly soluble in water.

Beilstein
112044

GHS危害和防范说明

GHS符号

Hazard Statements
H302-H318
Harmful if swallowed.Causes serious eye damage.

Precautionary Statements
P280i-P264-P305+P351+P338-P310a-P301+P312a-P501a
Wear eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险类别
22-41
Harmful if swallowed.Risk of serious damage to eyes.

安全等级
26-36/39-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing and eye/face protection,This material and its container must be disposed of as hazardous waste

欧盟危险品标志

RTECS
ON4025000

TSCA
是

C11639

Alfa Aesar

2,3-Dimethylmaleic Anhydride

97%

1276元/5g; 9282元/50g;

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基本信息

Ref#
11639

8.41502

Sigma-Aldrich

2,3-Dimethylmaleic Anhydride

for synthesis

542.33元/5 G;

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产品说明

分析说明

Assay (GC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 92 °C
Melting range (upper value): ≤ 95 °C
Identity (IR): passes test

基本信息

经验(实验)分子式	C₆H₆O₃
分子量	126.11
MDL编号	MFCD00005523
EC索引号	212-165-8

产品性质

质量水平	200
测定	≥98.0% (GC)
mp	96 ℃
密度	1.107 g/cm³ at 100 ℃
储存温度	2-30℃
InChI	1S/C6H6O3/c1-3-4(2)6(8)9-5(3)7/h1-2H3
InChI key	MFGALGYVFGDXIX-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Warning
危险声明	H302
预防措施声明	P264 - P270 - P301 + P312 - P501
危险分类	Acute Tox. 4 Oral
储存分类代码	11 - Combustible Solids
WGK	WGK 3
闪点(F)	Not applicable
闪点(C)	Not applicable

941441

Amethyst

2,3-Dimethylmaleic Anhydride

96%, 用于合成

76元/5G; 192元/25G;

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基本信息

分子式	C₆H₆O₃
分子量	126.11
熔点	91-96
沸点	223
MDL编码	MFCD00005523
Beilstein	112044
EINECS 编号	212-165-8

安全信息

图形或危害标志
提示语	Warning
危险说明	H302 H319
防范说明	P305+P351+P338
WGK	3
RTECS	ON4025000
TSCA	是

078937

Fluorochem

2,3-Dimethylmaleic Anhydride

98%

528元/10g; 1650元/100g;

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基本信息

CAS Number	766-39-2
MDL Number	MFCD00005523
Boiling Point	223 ℃ at 760 mmHg
Melting Point	93-96℃

安全信息

图形或危害标志
危险性说明	H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.
防范说明	P233: Keep container tightly closed. P260: Do not breathe . P261: Avoid breathing P264: Wash hands thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P301 + P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: . P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312: Call a POISON CENTER or doctor/physician if you feel unwell. P321: Specific treatment (see . on this label). P330: Rinse mouth. P332 + P313: If skin irritation occurs: Get medical advice/ attention. P337 + P313: If eye irritation persists: Get medical advice/attention. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P362: Take off contaminated clothing and wash before reuse. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to local regulations.