CAS 7145-99-5; 3,4-(亚甲二氧基)甲苯; 5-methyl-3-benzodioxole

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货号

品牌

产品名称

规格

包装、参考价格

M918602

MACKLIN

5-甲基苯并[d][1,3]二氧杂环戊烷

95%

85元/250mg; 144元/1g; 645元/5g; 1287元/10g;

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储存：2-8°C,密闭,干燥
状态：无色到黄色到棕色液体

Y13328

Alfa Aesar

5-methylbenzo[d][1,3]dioxole

215元/100mg; 2893元/5g; 4243元/10g; 8580元/25g;

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基本信息

分子量
136.15

284548

Sigma-Aldrich

3,4-(Methylenedioxy)toluene

97%

2838.41元/25 ML;

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产品说明

应用

3,4-(Methylenedioxy)toluene can be used as a cation scavenger for the selective cleavage of 4-(3,4-dimethoxyphenyl)benzyl (DMPBn) ethers affording the corresponding deprotected products in the presence of trifluoroacetic acid (TFA) in anhydrous CH₂Cl₂.
It can also be used as a starting material to prepare:

1,3-Benzodioxole-5-carboxaldehyde via photooxidation using CBr₄.
6-Methyl-1,3-benzodioxole-5-carboxaldehyde by treating with dichloromethylmethyl ether and TiCl₄.

包装

25 mL in glass bottle

基本信息

经验(实验)分子式	C₈H₈O₂
分子量	136.15
MDL编号	MFCD00005833
PubChem化学物质编号	24857165
NACRES	NA.22

产品性质

质量水平	100
测定	97%
形式	liquid
折射率	n20/D 1.532 (lit.)
bp	199-200 ℃ (lit.)
密度	1.135 g/mL at 25 ℃ (lit.)
SMILES string	Cc1ccc2OCOc2c1
InChI	1S/C8H8O2/c1-6-2-3-7-8(4-6)10-5-9-7/h2-4H,5H2,1H3
InChI key	GHPODDMCSOYWNE-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Danger
危险声明	H302 - H318
预防措施声明	P280 - P301 + P312 + P330 - P305 + P351 + P338 + P310
危险分类	Acute Tox. 4 Oral - Eye Dam. 1
储存分类代码	10 - Combustible liquids
WGK	WGK 3
闪点(F)	168.8 °F - closed cup
闪点(C)	76 ℃ - closed cup
个人防护装备	Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

342000

Fluorochem

3,4-Methylenedioxytoluene

95%

462元/250mg; 902元/1g; 1584元/10g; 5236元/50g;

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基本信息

CAS Number	7145-99-5
MDL Number	MFCD00005833
Boiling Point	78-80℃

安全信息

图形或危害标志
危险性说明	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. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.. 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 relevant procedures. on this label). 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 in accordance with local regulation .