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Pharmaceutical Intermediates

4-Bromo-2-Fluorophenol CAS 2105-94-4 Purity >99.0% (GC)

Chemical Name: 4-Bromo-2-Fluorophenol

CAS: 2105-94-4

Purity: >99.0% (GC)

Appearance: Colorless to Light Yellow Liquid

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Bromo-2,6-Dimethylaniline CAS 24596-19-8 Purity >98.0% (HPLC)

Chemical Name: 4-Bromo-2,6-Dimethylaniline

Synonyms: 4-Bromo-2,6-Xylidine

CAS: 24596-19-8

Purity: >98.0% (HPLC)

Appearance: Light Brown Solid

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Nitroanisole CAS 100-17-4 Purity >98.0% (GC)

Chemical Name: 4-Nitroanisole

Synonyms: 1-Methoxy-4-Nitrobenzene

CAS: 100-17-4

Purity: >98.0% (GC)

Appearance: Off-White to Light Yellow Crystal

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Hydroxy-2-Pyrrolidone CAS 25747-41-5 Purity >98.0% (HPLC)

Chemical Name: 4-Hydroxy-2-Pyrrolidone

CAS: 25747-41-5

Purity: >98.0% (HPLC)

Appearance: White to Off-White Powder

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Piperidine Butyric Acid Hydrochloride CAS 84512-08-3 Purity >98.0% (HPLC)

4-Piperidine Butyric Acid Hydrochloride

CAS: 84512-08-3

Purity: >98.0% (HPLC)

Appearance: White to Light Yellow Powder

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Chloroquinazoline CAS 3153-37-5 Purity >97.0% (HPLC)

Chemical Name: 4-Chloroquinazoline

CAS: 3153-37-5

Purity: >97.0% (HPLC)

Appearance: White to Light Yellow Powder

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Chloro-1-Butanol CAS 928-51-8 Purity >85.0% (GC) Factory

Chemical Name: 4-Chloro-1-Butanol

Synonyms: 4-Chlorobutan-1-ol

Contains Varying Amounts of Tetrahydrofuran

CAS: 928-51-8

Purity: >85.0% (GC)

Appearance: Colorless to Light Yellow Liquid

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Chloro-7-Tosyl-7H-Pyrrolo[2,3-d]pyrimidine CAS 479633-63-1 Purity >98.0% (HPLC) Tofacitinib Citrate Intermediate

4-Chloro-7-Tosyl-7H-Pyrrolo[2,3-d]pyrimidine

CAS: 479633-63-1

Purity: >98.0% (HPLC)

Appearance: White to Light Yellow Powder

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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(3R,4R)-1-Benzyl-N,4-Dimethylpiperidin-3-Amine CAS 477600-70-7 Purity >98.0% (HPLC) e.e. >98.0% Tofacitinib Citrate Intermediate

(3R,4R)-1-Benzyl-N,4-Dimethylpiperidin-3-Amine

CAS: 477600-70-7

Purity: >98.0% (HPLC)

Chiral Purity (e.e.): >98.0%

Appearance: Light-Yellow Oil

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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Tofacitinib Citrate Intermediate CAS 477600-71-8 Purity >97.0% (HPLC) e.e. >97.0%

(2R,3R)-2,3-Bis[(4-methylbenzoyl)oxy]butanedioic acid compd. with (3R,4R)-N,4-dimethyl-1-(phenylmethyl)-3-piperidinamine

CAS: 477600-71-8

Purity: >97.0% (HPLC)

Chiral Purity (e.e.): >97.0%

Appearance: White to Off-White Solid

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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2,4-Dichloro-7H-Pyrrolo[2,3-d]pyrimidine CAS 90213-66-4 Purity >99.0% (HPLC) Tofacitinib Citrate Intermediate

Chemical Name: 2,4-Dichloro-7H-Pyrrolo[2,3-d]pyrimidine

Synonyms: 2,6-Dichloro-7-Deazapurine

CAS: 90213-66-4

Purity: >99.0% (HPLC)

Appearance: Off-White to Light Yellow Solid

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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(3R,4R)-1-Benzyl-N,4-Dimethylpiperidin-3-Amine Dihydrochloride CAS 1062580-52-2 Purity >99.0% (GC) Tofacitinib Citrate Intermediate

Chemical Name: (3R,4R)-1-Benzyl-N,4-Dimethylpiperidin-3-Amine Dihydrochloride

CAS: 1062580-52-2

Purity: >99.0% (HPLC)

Chiral Purity (e.e.%): >99.0% (HPLC)

Appearance: White Solid

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Chloropyrrolo[2,3-d]pyrimidine CAS 3680-69-1 Purity >98.0% (HPLC) Tofacitinib Citrate Intermediate

Chemical Name: 4-Chloropyrrolo[2,3-d]pyrimidine

Synonyms: 4-Chloro-7H-Pyrrolo[2,3-d]pyrimidine

CAS: 3680-69-1

Purity: >98.0% (HPLC)

Appearance: Off-White or Light Yellow Powder

Intermediate of Tofacitinib Citrate (CAS: 540737-29-9)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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4-Formyl-N-Cbz-Piperidine CAS 138163-08-3 Purity >98.0% (GC)

Chemical Name: 4-Formyl-N-Cbz-Piperidine

Synonyms: Benzyl 4-Formylpiperidine-1-Carboxylate

CAS: 138163-08-3

Purity: >98.0% (GC)

Appearance: Colorless to Light Yellow Viscous Liquid

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

E-Mail: alvin@ruifuchem.com

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