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API Reference Standards

Tofacitinib Citrate

Reference StandardIn stock

Tofacitinib Citrate (CAS 540737-29-9) supplier Zemixal: C22H28N6O8, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-006869.

Pack sizes
Tofacitinib Citrate chemical structure
CAS number540737-29-9
FormulaC22H28N6O8
Molar mass504.5 g/mol
Physical formSolid
HS code38229090
InChIKeySYIKUFDOYJFGBQ-YLAFAASESA-N
IUPAC name2-hydroxypropane-1,2,3-tricarboxylic acid;3-[(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl]-3-oxopropanenitrile

About Tofacitinib Citrate

Analytical teams working on Tofacitinib use Tofacitinib Citrate as a qualified comparison standard. Key data (Reference Standard): CAS 540737-29-9, formula C22H28N6O8 and molar mass 504.5 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Identification & assay
  • Method development & validation
  • QC reference material

Storage and safety notes

Hazard communication follows GHS (Danger: H302 and H360). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Tofacitinib

See every impurity, metabolite and related compound we list for this API.

Tofacitinib standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Tofacitinib Citrate
Product nameTofacitinib Citrate
Catalogue numberZX-006869
CAS number540737-29-9
Other CAS numbers477600-75-2
IUPAC name2-hydroxypropane-1,2,3-tricarboxylic acid;3-[(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl]-3-oxopropanenitrile
Molecular formulaC22H28N6O8
Molar mass504.5 g/mol
Exact mass504.1969
GradeReference Standard
Physical formSolid
H-bond donors / acceptors5 / 12
Topological polar surface area221 Ų
HS code38229090
InChIKeySYIKUFDOYJFGBQ-YLAFAASESA-N
SMILESC[C@@H]1CCN(C[C@@H]1N(C)C2=NC=NC3=C2C=CN3)C(=O)CC#N.C(C(=O)O)C(CC(=O)O)(C(=O)O)O
PubChem CID10174505
SynonymsTasocitinib citrate, Xeljanz, Xeljanz XR, CP-690550 citrate, Tasocitinib monocitrate, Tofacitinib monocitrate, Tofacitinib (CP-690550) Citrate, Tofacitinib (citrate), CP 690550 citrate (Tofacitinib citrate), 540737-29-9 (citrate), CP-690550 Citrate (Tofacitinib Citrate), Racemic Tasocitinib

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H302Harmful if swallowed
  • H360May damage fertility or the unborn child

Precautionary statements P203, P264, P270, P280, P301 + P317, P318, P330, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Tofacitinib Citrate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Tofacitinib Citrate

Which CAS number identifies Tofacitinib Citrate?
Tofacitinib Citrate is registered under CAS 540737-29-9. You may also see it listed as Tasocitinib citrate, Xeljanz, Xeljanz XR. Our catalogue number for this item is ZX-006869.
What are the formula and molar mass of Tofacitinib Citrate?
For Tofacitinib Citrate, its formula is C22H28N6O8 and its molar mass is 504.5 g/mol. InChIKey SYIKUFDOYJFGBQ-YLAFAASESA-N lets you match it in any structure database.
How is Tofacitinib Citrate used in pharmaceutical QC?
Tofacitinib Citrate is a characterised reference material linked to Tofacitinib. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Tofacitinib Citrate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Tofacitinib Citrate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Tofacitinib Citrate to my country?
Yes. Because Tofacitinib Citrate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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