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CAS 1124-11-4 2,3,5,6-Tetramethylpyrazine molecular structure lightbox
CAS RN: 1124-11-4

2,3,5,6-Tetramethylpyrazine

Product Availability

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11 package records11 with current stock3 grade groups
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250620 100g In stock Inquiry
Batchno.20250910 25g In stock Inquiry
Batchno.20250117 500g In stock Inquiry
Batchno.20250827 5g In stock Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20260428 100g In stock Shanghai, Shandong, Guangdong Inquiry
Batchno.20260501 2.5kg In stock Shanghai, Shandong Inquiry
Batchno.20250429 25g In stock Shanghai, Shandong, Guangdong, Chongqing Inquiry
Batchno.20250614 500g In stock Shandong, Chongqing, Hebei Inquiry
Batch No.PackageAvailabilityWarehouseInquiry
Batchno.20250128 100g In stock Shanghai, Hebei Inquiry
Batchno.20250625 25g In stock Shanghai, Shandong, Chongqing, Hebei Inquiry
Batchno.20250825 500g In stock Shanghai, Chongqing Inquiry
  • Product code: SSC-012832
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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: 5g, 10g, 25g, 100g
  • Available purity: >98%
  • 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 1124-11-4
Pack Size Recorded Purity Available Qty Ship From Inquiry
5g >98% 0 Out of Stock Shanghai Inquiry
10g >98% 0 Out of Stock Beijing Inquiry
25g >98% 0 Out of Stock Shenzhen Inquiry
100g >98% 0 Out of Stock Shenzhen Inquiry

1124-11-4 / 2,3,5,6-tetramethylpyrazine

2,3,5,6-Tetramethylpyrazine | TETRAMETHYLPYRAZINE | Ligustrazine

Standard CAS: 1124-11-4 Multi CAS: No
Basic Information Physical Properties Computed Properties Safety & Transport

Basic Information

CAS
1124-11-4
Multi CAS
No
Molecular Formula
C8H12N2
Molecular Weight
136.190000
Exact Mass
136.100048
SMILES
CC1=C(N=C(C(=N1)C)C)C
InChI
InChI=1S/C8H12N2/c1-5-6(2)10-8(4)7(3)9-5/h1-4H3
InChIKey
FINHMKGKINIASC-UHFFFAOYSA-N
Synonyms
2,3,5,6-Tetramethylpyrazine TETRAMETHYLPYRAZINE Ligustrazine Chuanxiongzine Tetrapyrazine

Physical Properties

Melting Point
86 °C
Boiling Point
190.00 °C. @ 760.00 mm Hg
Physical Description
Solid white crystals or powder with a musty, fermented, coffee odour
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
10
Aromatic heavy atom count
6
Fraction Csp3
0.5
H-bond acceptors
2
Molar refractivity
40.98
TPSA
25.78

LogP / Solubility

WLOGP
1.71
MLOGP
1.5
XLogP3
1.3
Consensus LogP
1.5
Log S (ESOL)
-2.21
Class (ESOL)
Moderately soluble
Log S (Ali)
-1.91
Class (Ali)
Soluble
Log S (SILICOS-IT)
-1.96
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)
-2.34

Drug-likeness / Medicinal Chemistry

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

Safety & Transport

Pictogram(s)
Irritant
Signal
Warning
GHS Hazard Statements
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral] H302: Harmful if swallowed [Warning Acute toxicity, oral]
Precautionary Statement Codes
P264, P270, P301+P317, P330, and P501

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