3-Chloro-5H-pyrrolo[2,3-b]pyrazine

Name: 3-Chloro-5H-pyrrolo[2,3-b]pyrazine
Brand: Zemixal
SKU: ZX-044643

Reference StandardAvailable on request

Buy 3-Chloro-5H-pyrrolo[2,3-b]pyrazine (CAS 1111638-10-8) from Zemixal. Request a quote with price, lead time and documents.

Pack sizes

3-Chloro-5H-pyrrolo[2,3-b]pyrazine chemical structure

CAS number1111638-10-8

FormulaC₆H₄ClN₃

Molar mass153.57 g/mol

Physical formSolid

HS code38229090

InChIKeyQWTQGZAUKADLTO-UHFFFAOYSA-N

IUPAC name3-chloro-5H-pyrrolo[2,3-b]pyrazine

About 3-Chloro-5H-pyrrolo[2,3-b]pyrazine

3-Chloro-5H-pyrrolo[2,3-b]pyrazine is supplied by Zemixal as a characterised reference material for Tofacitinib analysis. Identity at a glance (Reference Standard): CAS 1111638-10-8, formula C6H4ClN3 and molar mass 153.57 g/mol. It is handled as a solid.

Use cases we see most often

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Danger: H302 and H318). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 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

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 3-Chloro-5H-pyrrolo[2,3-b]pyrazine
Product name	3-Chloro-5H-pyrrolo[2,3-b]pyrazine
Catalogue number	ZX-044643
CAS number	1111638-10-8
IUPAC name	3-chloro-5H-pyrrolo[2,3-b]pyrazine
Molecular formula	C₆H₄ClN₃
Molar mass	153.57 g/mol
Exact mass	153.0094
Grade	Reference Standard
Physical form	Solid
XLogP3	1.3
H-bond donors / acceptors	1 / 2
Topological polar surface area	41.6 Å²
HS code	38229090
InChIKey	QWTQGZAUKADLTO-UHFFFAOYSA-N
SMILES	C1=CNC2=NC(=CN=C21)Cl
PubChem CID	40152282

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

Safety and GHS hazards

Corrosive

Irritant or harmful

Signal word Danger

H302Harmful if swallowed
H318Causes serious eye damage

Precautionary statements P264, P264 + P265, P270, P280, P301 + P317, P305 + P354 + P338, P317, P330, 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 3-Chloro-5H-pyrrolo[2,3-b]pyrazine
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

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

Questions about 3-Chloro-5H-pyrrolo[2,3-b]pyrazine

Which CAS number identifies 3-Chloro-5H-pyrrolo[2,3-b]pyrazine?

3-Chloro-5H-pyrrolo[2,3-b]pyrazine is registered under CAS 1111638-10-8. Our catalogue number for this item is ZX-044643.

What are the formula and molar mass of 3-Chloro-5H-pyrrolo[2,3-b]pyrazine?

For 3-Chloro-5H-pyrrolo[2,3-b]pyrazine, its formula is C6H4ClN3 and its molar mass is 153.57 g/mol. The systematic (IUPAC) name is 3-chloro-5H-pyrrolo[2,3-b]pyrazine. InChIKey QWTQGZAUKADLTO-UHFFFAOYSA-N lets you match it in any structure database.

How is 3-Chloro-5H-pyrrolo[2,3-b]pyrazine used in pharmaceutical QC?

3-Chloro-5H-pyrrolo[2,3-b]pyrazine 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 3-Chloro-5H-pyrrolo[2,3-b]pyrazine?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 3-Chloro-5H-pyrrolo[2,3-b]pyrazine?

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 3-Chloro-5H-pyrrolo[2,3-b]pyrazine to my country?

Yes. Because 3-Chloro-5H-pyrrolo[2,3-b]pyrazine 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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