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CAS 20721-18-0 2-HYDROXY-6-METHYLPYRAZINE molecular structure lightbox
CAS RN: 20721-18-0

2-HYDROXY-6-METHYLPYRAZINE

Product Availability

Choose a grade to view its available package options.

7 package records7 with current stock2 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250815 1g / 5g / 25g / 100g Confirm by inquiry Shanghai 8-10 business days Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260303 100g In stock Shanghai Inquiry
Batchno.20251219 10g In stock Shanghai Inquiry
Batchno.20260529 1g In stock Shanghai, Shenzhen Inquiry
Batchno.20251221 250mg In stock Shanghai Inquiry
Batchno.20251018 25g In stock Shanghai Inquiry
Batchno.20260329 5g In stock Shanghai Inquiry
  • Product code: SSC-097571
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Historical Factory Record

Historical Supply Reference

This product has historical factory records. Recorded pack sizes and purity can be used as a supply reference, while project-specific availability is confirmed by inquiry.

  • Pack sizes on record: 1g, 5g, 10g, 25g
  • Available purity: >97%
  • Inventory rows with stock: 0
  • Bulk packaging: confirmed by inquiry
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Reference Pack Sizes

Reference pack sizes are shown below. Final availability, packaging and delivery schedule are confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 20721-18-0
Pack Size Recorded Purity Available Qty Ship From Inquiry
1g >97% 0 Out of Stock Shanghai Inquiry
5g >97% 0 Out of Stock Shenzhen Inquiry
10g >97% 0 Out of Stock Shanghai Inquiry
25g >97% 0 Out of Stock Hong Kong Inquiry

20721-18-0 / 6-methyl-1H-pyrazin-2-one

Standard CAS: 20721-18-0 Multi CAS: No
Basic Information Computed Properties

Basic Information

CAS
20721-18-0
Multi CAS
No
Molecular Formula
C5H6N2O
Molecular Weight
110.110000
Exact Mass
110.048013
SMILES
CC1=CN=CC(=O)N1
InChI
InChI=1S/C5H6N2O/c1-4-2-6-3-5(8)7-4/h2-3H,1H3,(H,7,8)
InChIKey
KXUOIHWSSNTEPE-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count
8
Aromatic heavy atom count
6
Fraction Csp3
0.2
H-bond acceptors
2
H-bond donors
1
Molar refractivity
29.59
TPSA
45.75

LogP / Solubility

WLOGP
0.08
MLOGP
0.06
XLogP3
-0.3
Consensus LogP
-0.05
Log S (ESOL)
-1.13
Class (ESOL)
Soluble
Log S (Ali)
-0.52
Class (Ali)
Very soluble
Log S (SILICOS-IT)
-0.44
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)
-3.34

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Leadlikeness
No
Synthetic Accessibility
1.5

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