CAS RN: 50-21-5
DL-Lactic Acid
Product Availability
Choose a grade to view its available package options.
12 package records11 with current stock8 grade groups
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250621 | 500ml | Out of stock | 8-10 business days | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250728 | 500ml | In stock | Shanghai, Shandong | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250513 | 500ml | In stock | Shandong, Guangdong, Hebei | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250810 | 500ml | In stock | Shanghai, Shandong, Chongqing | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250615 | 500ml | In stock | Shandong | Inquiry |
| Batch No. | Package | Availability | Warehouse | Lead Time | Inquiry |
|---|---|---|---|---|---|
| Batchno.20250122 | 500ml / 2.5L / 10L / 12X500ml | Confirm by inquiry | Shanghai, Shandong, Guangdong, Chongqing, Hebei | Inquiry |
- Product code: SSC-156253
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
- Available purity: Tech 88%
- Inventory rows with stock: 3
- 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.
50-21-5 / 2-hydroxypropanoic acid
Basic Information
CAS
50-21-5
Multi CAS
Yes
Molecular Formula
C3H6O3
Molecular Weight
90.080000
Exact Mass
90.031694
InChI
InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
InChIKey
JVTAAEKCZFNVCJ-UHFFFAOYSA-N
Physical Properties
Melting Point
16.8 °C
Crystals from ether and isopropyl ether; melting point = 52.8 °C; pK = 3.83; soluble in water, alcohol, acetone, ether, glycerol; practically insoluble in chloroform. /D-lactic acid/
Crystals from acetic acid or chloroform; melting point = 53 °C; pK = 3.79 at 25 °C. /L-lactic acid/
17 °C
Boiling Point
122 °C at 15 mm Hg
Density
1.2 at 68 °F (USCG, 1999) - Denser than water; will sink
1.2060 g/cu cm at 21 °C
Relative density (water = 1): 1.2
1.200-1.209
Physical Description
Lactic acid appears as a colorless to yellow odorless syrupy liquid. Corrosive to metals and tissue. Used to make cultured dairy products, as a food preservative, and to make chemicals.
Liquid
Colourless or yellowish, nearly odourless, syrupy liquid to solid
Thick liquid or crystals, colorless to yellow; mp = 17 deg C; [ICSC]
VISCOUS COLOURLESS-TO-YELLOW LIQUID OR COLOURLESS-TO-YELLOW CRYSTALS.
Appearance
Crystals (melt at 16.8 °C)
Yellow to colorless crystals or syrupy 50% liquid
Viscous, colorless to yellow liquid or colorless to yellow crystals
State
Liquid
Computed Properties
Structural Parameters
Heavy atom count
6
Fraction Csp3
0.67
Rotatable bonds
1
H-bond acceptors
2
H-bond donors
2
Molar refractivity
19.32
TPSA
57.53
LogP / Solubility
WLOGP
-0.55
MLOGP
-0.5
XLogP3
-0.7
Consensus LogP
-0.58
Log S (ESOL)
0.01
Class (ESOL)
Highly soluble
Log S (Ali)
0.1
Class (Ali)
Highly soluble
Log S (SILICOS-IT)
0.09
Class (SILICOS-IT)
Highly soluble
ADME
GI absorption
Low
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)
-3.66
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Leadlikeness
No
Synthetic Accessibility
2
Applications of CAS 50-21-5
This compound is commonly used in life science and biochemical research, organic synthesis and chemical building blocks, laboratory reagent and synthesis applications, general chemistry research and laboratory applications. Starshine Chemical supplies CAS 50-21-5 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.
Physical & Chemical Properties
| IUPAC Name | 2-hydroxypropanoic acid |
Safety Information (GHS)
Pictogram(s): GHS05, GHS07. Signal word: Danger.
- H314 (11.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H315 (87.5%): Causes skin irritation [Warning Skin corrosion/irritation]
- H318 (91.9%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H314 (10.1%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H315 (89.9%): Causes skin irritation [Warning Skin corrosion/irritation]
- H318 (99.7%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- Not Classified
- Reported as not meeting GHS hazard criteria by 2 of 2 companies. For more detailed information, please visit ECHA C&L website.
- H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
Precautionary statements: P260, P264, P264+P265, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P332+P317, P362+P364, P363, 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.
