CAS RN: 491-36-1
4-Hydroxyquinazoline
Product Availability
Choose a grade to view its available package options.
10 package records10 with current stock3 grade groups
| Batch No. | Package | Availability | Warehouse | Inquiry |
|---|---|---|---|---|
| Batchno.20260618 | 1g / 5g / 25g / 100g / 500g | Confirm by inquiry | Shanghai, Shandong, Chongqing, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Inquiry |
|---|---|---|---|---|
| Batchno.20251213 | 100g | In stock | Shanghai, Shenzhen | Inquiry |
| Batchno.20251104 | 1kg | In stock | Shanghai | Inquiry |
| Batchno.20260122 | 25g | In stock | Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu | Inquiry |
| Batchno.20250807 | 500g | In stock | Shanghai | Inquiry |
| Batchno.20251121 | 5g | In stock | Shanghai, Shenzhen | Inquiry |
- Product code: SSC-155521
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: 5g, 10g, 25g, 100g, 500g, 1000g
- Available purity: >97%
- Inventory rows with stock: 4
- 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 |
|---|---|---|---|---|
| 5g | >97% | 5 In Stock | Shanghai | Inquiry |
| 10g | >97% | 5 In Stock | Beijing | Inquiry |
| 25g | >97% | 5 In Stock | Shenzhen | Inquiry |
| 100g | >97% | 5 In Stock | Shanghai | Inquiry |
| 500g | >97% | 0 Out of Stock | Beijing | Inquiry |
| 1000g | >97% | 0 Out of Stock | Hong Kong | Inquiry |
491-36-1 / 1H-indazole-4-carbaldehyde
Basic Information
CAS
491-36-1
Multi CAS
Yes
Molecular Formula
C8H6N2O
Molecular Weight
146.150000
Exact Mass
146.048013
InChI
InChI=1S/C8H6N2O/c11-8-6-3-1-2-4-7(6)9-5-10-8/h1-5H,(H,9,10,11)
InChIKey
QMNUDYFKZYBWQX-UHFFFAOYSA-N
Computed Properties
Structural Parameters
Heavy atom count
11
Aromatic heavy atom count
9
Rotatable bonds
1
H-bond acceptors
2
H-bond donors
1
Molar refractivity
41.48
TPSA
45.75
LogP / Solubility
WLOGP
1.38
MLOGP
1.2
XLogP3
1
Consensus LogP
1.19
Log S (ESOL)
-2.15
Class (ESOL)
Moderately soluble
Log S (Ali)
-1.75
Class (Ali)
Soluble
Log S (SILICOS-IT)
-1.87
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)
-2.63
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
1.5
Applications of CAS 491-36-1
This compound is commonly used in general chemistry research and laboratory applications. Starshine Chemical supplies CAS 491-36-1 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.
Physical & Chemical Properties
| IUPAC Name | 3H-quinazolin-4-one |
Safety Information (GHS)
Pictogram(s): GHS07. Signal word: Warning.
- H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
- H315 (98.1%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (98.1%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (96.3%): 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, 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.
