CAS 51-45-6 Histamine molecular structure

lightbox

CAS RN: 51-45-6

Histamine

Product Availability

Choose a grade to view its available package options.

5 package records4 with current stock2 grade groups

Grade In stock only

Batch No.	Package	Availability	Warehouse	Lead Time	Inquiry
Batchno.20250504	100g	Out of stock		5-7 business days	Inquiry
Batchno.20250530	1g	In stock	Shanghai, Shandong, Guangdong, Chongqing, Hebei		Inquiry
Batchno.20251127	25g	In stock	Shanghai, Shandong		Inquiry
Batchno.20251207	5g	In stock	Shanghai, Shandong, Guangdong, Hebei		Inquiry

Batch No.	Package	Availability	Warehouse	Lead Time	Inquiry
Batchno.20260319	1ml	In stock			Inquiry

Product code: SSC-157757

GET A QUOTE

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: 0.25g, 1g, 5g, 10g, 25g, 100g
Available purity: >97%
Inventory rows with stock: 6
Bulk packaging: confirmed by inquiry

Request Bulk Quote

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 51-45-6
Pack Size	Recorded Purity	Available Qty	Ship From	Inquiry
0.25g	>97%	1 In Stock	Hong Kong	Inquiry
1g	>97%	1 In Stock	Shenzhen	Inquiry
5g	>97%	1 In Stock	Shanghai	Inquiry
10g	>97%	1 In Stock	Shanghai	Inquiry
25g	>97%	1 In Stock	Hong Kong	Inquiry
100g	>97%	1 In Stock	Shanghai	Inquiry

51-45-6 / 2-(1H-imidazol-5-yl)ethanamine

Standard CAS: 51-45-6 Multi CAS: Yes

Basic Information Physical Properties Computed Properties

Basic Information

CAS

51-45-6

Multi CAS

Yes

Molecular Formula

C5H9N3

Molecular Weight

111.150000

Exact Mass

111.079647

InChI

InChI=1S/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8)

InChIKey

NTYJJOPFIAHURM-UHFFFAOYSA-N

Physical Properties

Melting Point

83-84 °C 86 °C

Boiling Point

209-210 °C @ 18 MM HG

Physical Description

Solid

Appearance

NEEDLES FROM CHLOROFORM

State

Solid

Computed Properties

Structural Parameters

Heavy atom count

Aromatic heavy atom count

Fraction Csp3

0.4

Rotatable bonds

H-bond acceptors

H-bond donors

Molar refractivity

31.35

TPSA

54.7

LogP / Solubility

WLOGP

-0.09

MLOGP

-0.09

XLogP3

-0.7

Consensus LogP

-0.29

Log S (ESOL)

-0.8

Class (ESOL)

Very soluble

Log S (Ali)

-0.41

Class (Ali)

Very soluble

Log S (SILICOS-IT)

-0.55

Class (SILICOS-IT)

Very 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)

-3.46

Drug-likeness / Medicinal Chemistry

Lipinski

Yes

Ghose

Veber

Yes

Egan

Yes

Muegge

Bioavailability score

0.55

Leadlikeness

Synthetic Accessibility

1.5

Applications of CAS 51-45-6

This compound is commonly used in general chemistry research and laboratory applications. Starshine Chemical supplies CAS 51-45-6 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.

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.