Pharmaceutical Intermediates

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3-Amino-2,6-piperidinedione hydrochloride

Chinese Name: 3-氨基-2,6-哌啶二酮盐酸盐
English Name: 3-Amino-2,6-piperidinedione hydrochloride
CAS: 24666-56-6 (also referenced as 2686-86-4)
Purity Specification: 99.0%
Product Category: Intermediate

English Synonyms:

  • 3-Amino-2,6-piperidinedione hydrochloride

  • 2,6-Dioxopiperidine-3-ammonium chloride

Chinese Product Name:
3-氨基-2,6-哌啶二酮盐酸盐

Molecular Formula: C₅H₉ClN₂O₂
Molecular Weight: 164.59
CAS Registration Number: 24666-56-6 (alternative CAS: 2686-86-4)

Keywords: 24666-56-6; 泊马度胺 (Pomalidomide); 来那度胺 (Lenalidomide); 2686-86-4

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3-Fluorophthalic anhydride

English name: 3-Fluorophthalic anhydride
Alias: 5-Fluoro-isobenzofurandione
Product name: 3-Fluorophthalic anhydride; 3-Fluoro-1,2-benzenedicarboxylic anhydride

Molecular structure: CAS Registry number: 652-39-1, 3-Fluorophthalic anhydride, 3-Fluoro-1,2-benzenedicarboxylic anhydride

Molecular formula: C8H3FO3
Molecular weight: 166.11
CAS Registry number: 652-39-1
EINECS Registry number: 211-491-8

Keywords: 652-39-1; 5-Fluoro-isobenzofurandione

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3-hydroxyphtalic anhydride

Chinese Name: 3-羟基苯二甲酸酐
English Name: 3-Hydroxyphtalic anhydride
CAS Number: 37418-88-5
Purity: 98.0%
Product Category: Intermediate

English Synonyms:

  • 3-Hydroxyphtalic anhydride

  • 4-Hydroxy-2-benzofuran-1,3-dione

  • 4-Hydroxyisobenzofuran-1,3-dione

  • NSC 80858

Chinese Synonyms:

  • 3-羟基邻苯二甲酸酐

  • 4-羟基-2-苯并呋喃-1,3-二酮

  • 3-羟酐

  • 4-羟酐

Molecular Formula: C₈H₄O₄
Molecular Weight: 164.12

CAS Registry Number: 37418-88-5

Keywords: 3-羟基苯二甲酸酐; 37418-88-5; 4-羟基-2-苯并呋喃-1,3-二酮; 3-羟酐; 4-羟酐

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3,4-Dihydro-2H-pyran-2-methanol

Product Name (English): 3,4-Dihydro-2H-pyran-2-methanol
Product Name (Chinese): 2-羟甲基-3,4-二氢吡喃
CAS Number: 3749-36-8
Purity: 97.0%
Product Category: Intermediate

Synonyms:

  • 2-Hydroxymethyl-3,4-dihydro-2H-pyran

  • 3,4-Dihydro-2H-pyran-2-ylmethanol

  • DHP Linker

Molecular Formula: C₆H₁₀O₂
Molecular Weight: 114.14
EINECS Number: 223-150-0

Structure: (Referenced under CAS No. 3749-36-8)

Keywords: 3749-36-8; 2-Hydroxymethyl-3,4-dihydro-2H-pyran; 3,4-Dihydro-2H-pyran-2-methanol; DHP Linker

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4-Amino-3-chlorophenol

Product Name: 4-Amino-3-chlorophenol
CAS Number: 17609-80-2
Purity: 99.0%
Category: Intermediate

Synonyms:

  • 3-Chloro-4-aminophenol

  • AMINO(4-)-3-CHLOROPHENOL

  • Phenol, 4-amino-3-chloro-

  • Lenvatinib Intermediate V

Molecular Formula: C₆H₆ClNO
Molecular Weight: 143.57
EINECS No.: 241-583-3

Keywords:
17609-80-2; Lenvatinib Intermediate; 857890-39-2; 417716-92-8; Lenvatinib; Lenvatinib mesylate

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4-Chloro-7-methoxyquinoline-6- carboxamide

Product Name: 4-Chloro-7-methoxyquinoline-6-carboxamide
CAS Number: 417721-36-9
Purity: 99.0%
Category: Intermediate

Synonyms:

  • 4-Chloro-7-methoxyquinoline-6-carboxamide

  • Lenvatinib Intermediate I

  • Lenvatinib Impurity B

  • 4-Chloro-7-methoxy-6-quinolinecarboxamide

Molecular Formula: C₁₁H₉ClN₂O₂
Molecular Weight: 236.65

Keywords:
417721-36-9; Lenvatinib intermediate; 857890-39-2; 417716-92-8; Lenvatinib; Lenvatinib mesylate

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