5-METHYL-1,3-BENZODIOXOLE

CAS No.：7145-99-5

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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5-METHYL-1,3-BENZODIOXOLE Basic information

Product Name:	5-METHYL-1,3-BENZODIOXOLE
Synonyms:	TIMTEC-BB SBB008152;4-METHYL-1,2-METHYLENEDIOXYBENZENE;5-METHYL-1,3-BENZODIOXOLE;3,4-(METHYLENEDIOXY)TOLUENE;1,3-Benzodioxole, 5-methyl-;3,4-methylenedioxy-toluen;5-methyl-3-benzodioxole;ai3-20481
CAS:	7145-99-5
MF:	C8H8O2
MW:	136.15
EINECS:	230-453-1
Product Categories:	Building Blocks;Chemical Synthesis;Aromatic Hydrocarbons (substituted) & Derivatives;Organic Building Blocks;Oxygen Compounds;Protected Alcohols/Phenols
Mol File:	7145-99-5.mol

5-METHYL-1,3-BENZODIOXOLE Chemical Properties

Boiling point	199-200 °C (lit.)
density	1.135 g/mL at 25 °C (lit.)
refractive index	n20/D 1.532(lit.)
Fp	169 °F
storage temp.	2-8°C
CAS DataBase Reference	7145-99-5(CAS DataBase Reference)

Safety Information

Hazard Codes	Xn
Risk Statements	22-41
Safety Statements	26-39
WGK Germany	3
RTECS	DF4921090

MSDS Information

Provider	Language
SigmaAldrich	English
ALFA	English

5-METHYL-1,3-BENZODIOXOLE Usage And Synthesis

Uses

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.

5-METHYL-1,3-BENZODIOXOLE Preparation Products And Raw materials

Raw materials

Dichloromethane-->4-Methylcatechol-->Piperonyl aldehyde

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