CAS 15803-02-8 4-Bromo-1-methylpyrazole molecular structure

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CAS RN: 15803-02-8

4-Bromo-1-methylpyrazole

Product Availability

Choose a grade to view its available package options.

5 package records5 with current stock2 grade groups

Grade In stock only

Batch No.	Package	Availability	Inquiry
Batchno.20250904	100g	In stock	Inquiry
Batchno.20251222	25g	In stock	Inquiry
Batchno.20251026	500g	In stock	Inquiry
Batchno.20260405	5g	In stock	Inquiry

Batch No.	Package	Availability	Warehouse	Lead Time	Inquiry
Batchno.20250401	5g / 25g / 100g / 500g / 2.5kg	Confirm by inquiry	Shandong, Shanghai	5-7 business days	Inquiry

Product code: SSC-066655

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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, 5g, 10g, 100g, 25g, 500g, 1000g
Available purity: >98%
Inventory rows with stock: 5
Bulk packaging: confirmed by inquiry

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Available Pack Sizes & Stock

Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 15803-02-8
Pack Size	Recorded Purity	Available Qty	Ship From	Inquiry
1g	>98%	5 In Stock	Beijing	Inquiry
5g	>98%	5 In Stock	Hong Kong	Inquiry
10g	>98%	5 In Stock	Shanghai	Inquiry
100g	>98%	5 In Stock	Shanghai	Inquiry
25g	>98%	3 In Stock	Hong Kong	Inquiry
500g	>98%	0 Out of Stock	Beijing	Inquiry
1000g	>98%	0 Out of Stock	Hong Kong	Inquiry

15803-02-8 / 4-bromo-1-methylpyrazole

Standard CAS: 15803-02-8 Multi CAS: No

Basic Information Computed Properties Safety & Transport

Basic Information

CAS

15803-02-8

Multi CAS

Molecular Formula

C4H5BrN2

Molecular Weight

161.000000

Exact Mass

159.963610

SMILES

CN1C=C(C=N1)Br

InChI

InChI=1S/C4H5BrN2/c1-7-3-4(5)2-6-7/h2-3H,1H3

InChIKey

IXJSDKIJPVSPKF-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count

Aromatic heavy atom count

Fraction Csp3

0.25

H-bond acceptors

Molar refractivity

30.91

TPSA

17.82

LogP / Solubility

WLOGP

1.18

MLOGP

1.04

XLogP3

0.9

Consensus LogP

1.04

Log S (ESOL)

-2.11

Class (ESOL)

Moderately soluble

Log S (Ali)

-1.73

Class (Ali)

Soluble

Log S (SILICOS-IT)

-1.69

Class (SILICOS-IT)

Soluble

ADME

GI absorption

High

BBB permeant

Yes

P-gp substrate

CYP1A2 inhibitor

CYP2C19 inhibitor

CYP2C9 inhibitor

CYP2D6 inhibitor

CYP3A4 inhibitor

Log Kp (skin permeation)

-2.86

Drug-likeness / Medicinal Chemistry

Lipinski

Yes

Ghose

Veber

Yes

Egan

Yes

Muegge

Bioavailability score

0.55

Leadlikeness

Synthetic Accessibility

1.5

Safety & Transport

Pictogram(s)

Corrosive Irritant

Signal

Danger

GHS Hazard Statements

H315 (97.8%): Causes skin irritation [Warning Skin corrosion/irritation] H318 (95.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation] H335 (95.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statement Codes

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P332+P317, P362+P364, P403+P233, P405, and P501

Applications of CAS 15803-02-8

This compound is commonly used in general chemistry research and laboratory applications. Starshine Chemical supplies CAS 15803-02-8 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.

Physical & Chemical Properties

IUPAC Name

4-bromo-1-methylpyrazole

Safety Information (GHS)

Pictogram(s): GHS05, GHS07. Signal word: Danger.

H315 (97.8%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (95.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H335 (95.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary statements: P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P354+P338, P317, P319, P321, P332+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.