ChemicalBook > CAS DataBase List > 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE

1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE

Product Name: 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE
CAS No.: 99614-64-9
Chemical Name: 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE
Synonyms: ONDANSETRON EP IMP D;Ondansetron EP Impurity D;Ondansetron impurity D CRS;Ondansetron impurity D (PhEur);Ondanserton Related Compound-D;Ondansetron USP Related Compound D;Ondansetron Related Compound D (USP);Ondansetron EP Impurity D (USP RC D);Ondansetron HCl EP IMpurity-D (USP RC D);3,9-dimethyl-2,3-dihydro-1H-carbazol-4-one
CBNumber: CB9733127
Molecular Formula: C14H13NO
Formula Weight: 211.26
MOL File: 99614-64-9.mol

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1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE Property

Boiling point:: 394℃
Density: 1.18
Flash point:: 192℃
storage temp.: 2-8°C
solubility: Chloroform (Slightly), Methanol (Slightly)
form: solid
BRN: 7920329

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Safety

Hazard Codes: T
Risk Statements: 25-43
Safety Statements: 36/37-45
RIDADR: UN 2811 6.1 / PGIII
WGK Germany: 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H317May cause an allergic skin reaction

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: Y0000195
Product name: Ondansetron impurity D
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: 15 mg
Price: $156
Updated: 2025/07/31

Sigma-Aldrich

Product number: PHR2221
Product name: Ondansetron Related Compound D
Purity: PharmaceuticalSecondaryStandard;CertifiedReferenceMaterial
Packaging: 100mg
Price: $563.35
Updated: 2025/07/31

Sigma-Aldrich

Product number: 1478629
Product name: Ondansetron Related Compound D
Purity: United States Pharmacopeia (USP) Reference Standard
Packaging: 30mg
Price: $1300
Updated: 2025/07/31

Sigma-Aldrich

Product number: Y0000195
Product name: Ondansetron impurity D
Purity: European Pharmacopoeia (EP) Reference Standard
Packaging: y0000195
Price: $153
Updated: 2024/03/01

TRC

Product number: T293930
Product name: 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one
Packaging: 1g
Price: $175
Updated: 2021/12/16

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1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE Chemical Properties,Usage,Production

Chemical Properties

Off-White Solid

Uses

1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one is an impurity of Ondansetron (O655000).

1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE Suppliers

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99614-64-9, 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONERelated Search:

Ondansetron EP Impurity G Ondansetron IMpurity Ondansetron HCl IMpurity-G Imidazole 2-Methylimidazole Ondansetron hydrochloride 3-[(Dimethylamino)methyl]-9-methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE(ONDANSETRON INTERMEDIATE) 1,2,3,9-TETRAHYDRO-4H-9-METHYL-CARBAZOLE-4-ONE 1,2,3,9-Tetrahydro-4(H)-carbazol-4-one 1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE

Ondansetron impurity D (PhEur)

Ondansetron Related Compound D (USP)

9-Methyl-3-methylene-1,2,3,9-tetrahydro-4H-carbazol-4-one

Ondansetron EP Impurity D

1,2,3,4-TETRAHYDRO-9-METHYL-3-METHYLENE-9H-CARBAZOL-4-ONE

4H-Carbazol-4-one,1,2,3,9-tetrahydro-9-Methyl-3-Methylene-

1,2,3,9-TETRAHYDRO-9-METHYL-3-METHYLENE-4H-CARBAZOL-4-ONE

1,2,3,9-TETRAHYDRO-9-METHTYL-3-METHYLENE-4H-CARBAZOL-4-ONE

Ondansetron HCl EP IMpurity-D (USP RC D)

9-Methyl-3-Methylene-2,3-dihydro-1H-carbazol-4(9H)-one

9-methyl-3-methylidene-1,2-dihydrocarbazol-4-one

Ondansetron EP Impurity D (USP RC D)

Ondansetron Hydrochloride Impurity Ⅰ：1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one

Ondansetron USP Related Compound D

Ondansetron Hydrochloride Dihydrate EP Impurity D (USP RC D)

Ondansetron Impurity 4（Ondansetron EP Impurity D）

3,9-dimethyl-2,3-dihydro-1H-carbazol-4-one

Ondansetron impurity D CRS

Ondansetron EP Impurity D/ Ondansetron Related Compound D

Ondansetron Impurity D (Ondansetron Related Compound-D)Q: What is Ondansetron Impurity D (Ondansetron Related Compound-D) Q: What is the CAS Number of Ondansetron Impurity D (Ondansetron Related Compound-D) Q: What is the storage condition of Ondansetron Impurity D (Ondansetron Related Compound-D) Q: What are the applications of Ondansetron Impurity D (Ondansetron Related Compound-D)

Ondansetron Related Compound D (1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one) (1478629)

Ondansetron Hydrochloride Dihydrate EP Impurity D

Ondanserton Related Compound-D

ONDANSETRON EP IMP D

Ondansetron EP Impurity D Related compound D, 9-methyl-3-methylene-1,2,3,9-tetrahydro 4H-carbazol-4-one

Ondansetron Hydrochloride Impurity Ⅰ：1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one

99614-64-9

(intermediate of ondansetron)

Aromatics

Heterocycles

Impurities

Intermediates