苯甲酸酐

苯甲酸酐用途

【用途一】
用作制造药物、染料、防腐剂的苯甲酰化剂，也可用作一些聚合物的添加剂及软化剂
【用途二】
有机合成中间体。用于制药、染料、防腐剂、苯酰化剂、软化剂。也可用于水分析。
【用途三】
测定有机液体中的水分。有机合成。苯酰化剂。制药、染料中间体。防腐剂。软化剂。

苯甲酸酐名称

[ CAS 号 ]:
93-97-0

[ 中文名 ]:
苯甲酸酐

[ 英文名 ]:
Benzoic anhydride

[中文别名 ]:

[英文别名 ]:

Benzoic acid anhydride
Benzoyl benzoate
MFCD00003073
benzoyl anhydride
EINECS 202-291-1
Benzoic anhydride

苯甲酸酐物理化学性质

[ 密度 ]:
1.2±0.1 g/cm3

[ 沸点 ]:
360.0±11.0 °C at 760 mmHg

[ 熔点 ]:
38-42 °C(lit.)

[ 分子式 ]:
C₁₄H₁₀O₃

[ 分子量 ]:
226.227

[ 闪点 ]:
168.4±16.5 °C

[ 精确质量 ]:
226.062988

[ PSA ]:
43.37000

[ LogP ]:
3.02

[ 外观性状 ]:
白色至灰白色片

[ 蒸汽压 ]:
0.0±0.8 mmHg at 25°C

[ 折射率 ]:
1.590

[ 储存条件 ]:
Store at RT.

[ 水溶解性 ]:
0.01 g/L

苯甲酸酐MSDS

苯甲酸酐安全信息

[ 符号 ]:

GHS05, GHS07

[ 信号词 ]:
Danger

[ 危害声明 ]:
H315-H318-H335

[ 警示性声明 ]:
P261-P280-P305 + P351 + P338

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi:Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S39-S37/39

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ 包装等级 ]:
I; II; III

[ 危险类别 ]:
5.1

[ 海关编码 ]:
4002191900

苯甲酸酐合成路线

苯甲酸酐上下游产品

苯甲酸酐上游产品

苯甲酸酐下游产品

苯甲酸酐制备

由苯甲酸与乙酐反应而得。将苯甲酸、乙酐和糖浆状磷酸一起蒸馏反应，温度不超过120℃，蒸出一定量馏分时，向反应混合物补加乙酐，重复此操作。然后蒸出馏分直至反应物温度达到270℃。将蒸馏剩余物减压分馏，在2.53-2.67kPa压力下，收集210-220℃的馏分即为苯甲酸酐粗品，重结晶得成品。

苯甲酸酐海关

[ 海关编码 ]: 4002191900

苯甲酸酐文献

Regioselective benzoylation of glycopyranosides by benzoic anhydride in the presence of Cu(CF3COO)2.

Carbohydr. Res. 359 , 111-9, (2012)

Benzoylation of methyl and benzyl glycopyranosides by benzoic anhydride in acetonitrile in the presence of copper(II) trifluoroacetate as a promoter has given monobenzoates with a good yield and high ...

Introduction of a benzoyl group onto 6-chloropurine riboside in aqueous solution and its application to the synthesis of nucleoside derivatives.

Nucleic Acids Symp. Ser. 44 , 103-104, (2000)

A benzoyl group was introduced onto the 3'-hydroxyl group of 6-chloropurine riboside by treatment with benzoic anhydride in the presence of a base in aqueous solution. The product (3b) was converted t...

Derivatization for LC-electrospray ionization-MS: a tool for improving reversed-phase separation and ESI responses of bases, ribosides, and intact nucleotides.

Anal. Chem. 76(10) , 2869-77, (2004)

We have developed a method for analyzing polar compounds by reversed-phase LC-ESI-MS following esterification of the analytes' free hydroxyl groups with propionyl or benzoyl acid anhydride. The method...

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