CAS RN: 21943-12-4
2-Amino-3-bromopyrazine
Product Availability
Choose a grade to view its available package options.
6 package records6 with current stock2 grade groups
| Batch No. | Package | Availability | Warehouse | Inquiry |
|---|---|---|---|---|
| Batchno.20260606 | 100mg / 250mg / 1g / 5g / 10g / 25g | Confirm by inquiry | Shanghai | Inquiry |
- Product code: SSC-105544
Verified Factory Data
Supply Overview & Packaging Options
Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.
- Pack sizes on record: 1g, 0.25g, 0.1g, 5g, 10g, 25g, 100g
- Available purity: ≥98%
- Inventory rows with stock: 2
- Bulk packaging: confirmed by inquiry
Available Pack Sizes & Stock
Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.
| Pack Size | Recorded Purity | Available Qty | Ship From | Inquiry |
|---|---|---|---|---|
| 1g | ≥98% | 5 In Stock | Shenzhen | Inquiry |
| 0.25g | ≥98% | 1 In Stock | Shanghai | Inquiry |
| 0.1g | ≥98% | 0 Out of Stock | Shenzhen | Inquiry |
| 5g | ≥98% | 0 Out of Stock | Hong Kong | Inquiry |
| 10g | ≥98% | 0 Out of Stock | Shanghai | Inquiry |
| 25g | ≥98% | 0 Out of Stock | Shanghai | Inquiry |
| 100g | ≥98% | 0 Out of Stock | Shanghai | Inquiry |
21943-12-4 / 3-bromopyrazin-2-amine
Basic Information
CAS
21943-12-4
Multi CAS
No
Molecular Formula
C4H4BrN3
Molecular Weight
174.000000
Exact Mass
172.958860
SMILES
C1=CN=C(C(=N1)N)Br
InChI
InChI=1S/C4H4BrN3/c5-3-4(6)8-2-1-7-3/h1-2H,(H2,6,8)
InChIKey
BFEUGUAUYFATRV-UHFFFAOYSA-N
Computed Properties
Structural Parameters
Heavy atom count
8
Aromatic heavy atom count
6
H-bond acceptors
3
H-bond donors
1
Molar refractivity
34.14
TPSA
51.8
LogP / Solubility
WLOGP
0.82
MLOGP
0.72
XLogP3
0.5
Consensus LogP
0.68
Log S (ESOL)
-1.99
Class (ESOL)
Soluble
Log S (Ali)
-1.58
Class (Ali)
Soluble
Log S (SILICOS-IT)
-1.47
Class (SILICOS-IT)
Soluble
ADME
GI absorption
High
BBB permeant
Yes
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.2
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Leadlikeness
No
Synthetic Accessibility
1.5
Applications of CAS 21943-12-4
This compound is commonly used in pharmaceutical research and drug discovery, general chemistry research and laboratory applications. Starshine Chemical supplies CAS 21943-12-4 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.
Physical & Chemical Properties
| IUPAC Name | 3-bromopyrazin-2-amine |
Safety Information (GHS)
Pictogram(s): GHS07. Signal word: Warning.
- H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
- H312 (100%): Harmful in contact with skin [Warning Acute toxicity, dermal]
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]
- H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary statements: P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Request the SDS (Safety Data Sheet) for full hazard and safety documentation.
Storage & Handling
Storage: Keep the container tightly closed in a cool, dry and well-ventilated place. For detailed hazard, storage and transport information, request the SDS (Safety Data Sheet) with your inquiry.
Quotation & Packaging
Prices are confirmed by inquiry. Request a quote for current pricing, minimum order quantity (MOQ) and lead time. The pack sizes listed on this page are reference options; custom pack sizes and bulk quantities are available on request.
Quality & Compliance
Specifications and purity shown on this page are based on batch records. A Certificate of Analysis (COA) is available on request. For research and further manufacturing use only — not for direct human or therapeutic use.
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