CAS 16281-39-3|5-chloro-3,4-dihydro-8-hydroxy-3-methyl-1h-2-benzopyran-1-one-7-carboxylic acid

Introduction：Basic information about CAS 16281-39-3|5-chloro-3,4-dihydro-8-hydroxy-3-methyl-1h-2-benzopyran-1-one-7-carboxylic acid, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Safety Information
4. Customs
5. Synonyms

Common Name	5-chloro-3,4-dihydro-8-hydroxy-3-methyl-1h-2-benzopyran-1-one-7-carboxylic acid
CAS Number	16281-39-3	Molecular Weight	256.63900
Density	1.539g/cm3	Boiling Point	521.4ºC at 760mmHg
Molecular Formula	C₁₁H₉ClO₅	Melting Point	/
MSDS	/	Flash Point	269.2ºC

Names

Name	5-chloro-3,4-dihydro-8-hydroxy-3-methyl-1h-2-benzopyran-1-one-7-carboxylic acid
Synonym	More Synonyms

Chemical & Physical Properties

Density	1.539g/cm3
Boiling Point	521.4ºC at 760mmHg
Molecular Formula	C₁₁H₉ClO₅
Molecular Weight	256.63900
Flash Point	269.2ºC
Exact Mass	256.01400
PSA	83.83000
LogP	1.84520
Vapour Pressure	1.06E-11mmHg at 25°C
Index of Refraction	1.62
InChIKey	OSFWJKYWJMZKSM-UHFFFAOYSA-N
SMILES	CC1Cc2c(Cl)cc(C(=O)O)c(O)c2C(=O)O1

Safety Information

HS Code	2932999099

Customs

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Synonyms

1H-2-Benzopyran-7-carboxylic acid,5-chloro-3,4-dihydro-8-hydroxy-3-methyl-1-oxo

5-chloro-8-hydroxy-3-methyl-1-oxoisochroman-7-carboxylic acid

3-methyl-5-chloro-7-carboxy-8-hydroxyisocoumarin

5-chloro-8-hydroxy-3,4-dihydro-3-methylisocoumarin-7-carboxylic acid

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