CAS RN: 872-50-4
1-Methyl-2-pyrrolidone
Product Availability
Choose a grade to view its available package options.
24 package records21 with current stock16 grade groups
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250809 | 250ml / 500ml / 2.5L / 10L / 20L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250428 | 100g | In stock | Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu | Inquiry | |
| Batchno.20250125 | 10kg | In stock | Shanghai | Inquiry | |
| Batchno.20251203 | 1kg | In stock | Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu | Inquiry | |
| Batchno.20250729 | 25kg | In stock | Shanghai | Inquiry | |
| Batchno.20250415 | 500g | In stock | Shanghai, Shenzhen, Tianjin, Wuhan | Inquiry | |
| Batchno.20250910 | 500ml / 2.5L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry | |
| Batchno.20250207 | 5kg | In stock | Shanghai | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20260105 | 100ml / 500ml / 1L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | 5-7 business days | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250824 | 1L / 2L | Out of stock | 8-10 business days | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250412 | 4L | In stock | Shandong, Guangdong | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250127 | 500ml / 4L | Out of stock | 8-10 business days | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20251114 | 500ml | Out of stock | 8-10 business days | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250815 | 100ml / 500ml / 2.5L / 10L | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20251227 | 1L / 5L | Confirm by inquiry | Shanghai | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20251106 | 1L | In stock | Shandong, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250807 | 100ml / 500ml / 4L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20251013 | 100ml / 500ml / 1L / 5L / 25L | Confirm by inquiry | Shanghai, Shandong, Chongqing | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250808 | 250ml / 500ml / 2.5L / 10L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20260507 | 5ml | In stock | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250824 | 5ml | In stock | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
- Product code: SSC-196892
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: 100g, 500g, 1000g, 5000g, 10000g, 25000g
- Available purity: >99%
- Inventory rows with stock: 6
- 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 |
|---|---|---|---|---|
| 100g | >99% | 5 In Stock | Beijing | Inquiry |
| 500g | >99% | 5 In Stock | Shanghai | Inquiry |
| 1000g | >99% | 5 In Stock | Beijing | Inquiry |
| 5000g | >99% | 5 In Stock | Hong Kong | Inquiry |
| 10000g | >99% | 5 In Stock | Shenzhen | Inquiry |
| 25000g | >99% | 5 In Stock | Hong Kong | Inquiry |
872-50-4 / 1-methylpyrrolidin-2-one
Basic Information
CAS
872-50-4
Multi CAS
Yes
Molecular Formula
C5H9NO
Molecular Weight
99.130000
Exact Mass
99.068414
InChI
InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3
InChIKey
SECXISVLQFMRJM-UHFFFAOYSA-N
Physical Properties
Melting Point
-9 °F (NTP, 1992)
-25 °C
-24.4 °C
-9 °F
Boiling Point
396 °F at 760 mmHg (NTP, 1992)
202 °C at 760 mm Hg
202 °C
396 °F
Density
1.03 at 77 °F (USCG, 1999) - Denser than water; will sink
1.027 at 25 °C/25 °C
Relative density (water = 1): 1.03
1.03
Physical Description
N-methyl-2-pyrrolidone appears as a clear colorless liquid with a "fishlike" odor. Denser than water. Flash point 199 °F. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion.
NKRA; Dry Powder; Liquid
A clear colorless liquid with a fish-like odor; [CAMEO] Almost colorless liquid with an amine odor; [AIHA]
COLOURLESS HYGROSCOPIC LIQUID WITH CHARACTERISTIC ODOUR.
A clear colorless liquid with a fish-like odor.
Appearance
Clear liquid
State
Liquid
Computed Properties
Structural Parameters
Heavy atom count
7
Fraction Csp3
0.8
H-bond acceptors
1
Molar refractivity
26.87
TPSA
20.31
LogP / Solubility
WLOGP
0.24
MLOGP
0.2
XLogP3
-0.5
Consensus LogP
-0.02
Log S (ESOL)
-0.6
Class (ESOL)
Very soluble
Log S (Ali)
-0.55
Class (Ali)
Very soluble
Log S (SILICOS-IT)
-0.5
Class (SILICOS-IT)
Very 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)
-3.16
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 872-50-4
This compound is commonly used in general chemistry research and laboratory applications. Starshine Chemical supplies CAS 872-50-4 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.
Physical & Chemical Properties
| IUPAC Name | 1-methylpyrrolidin-2-one |
Safety Information (GHS)
Pictogram(s): GHS07, GHS08. Signal word: Danger.
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H360D ***: May damage the unborn child [Danger Reproductive toxicity]
- H315 (> 99.9%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (> 99.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (94.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H360 (94.2%): May damage fertility or the unborn child [Danger Reproductive toxicity]
- H227: Combustible liquid [Warning Flammable liquids]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]
- H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
Precautionary statements: P203, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, 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: Store under inert gas. Avoid: Light Sensitive,Hygroscopic. 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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