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CAS 738-70-5 Trimethoprim molecular structure lightbox
CAS RN: 738-70-5

Trimethoprim

Product Availability

Choose a grade to view its available package options.

7 package records7 with current stock2 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250920 100g In stock Shanghai Inquiry
Batchno.20250602 1kg In stock Shanghai Inquiry
Batchno.20251111 25g In stock Shanghai, Shenzhen, Tianjin, Wuhan Inquiry
Batchno.20260507 500g In stock Shanghai Inquiry
Batchno.20250218 5g In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batchno.20250308 5g / 25g / 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Guangdong, Chongqing, Hebei 5-7 business days Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250206 1ml In stock Inquiry
  • Product code: SSC-183233
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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: 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 738-70-5
Pack Size Recorded Purity Available Qty Ship From Inquiry
100g ≥98% 0 Out of Stock Beijing Inquiry

738-70-5 / 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine

Standard CAS: 738-70-5 Multi CAS: Yes
Basic Information Physical Properties Computed Properties

Basic Information

CAS
738-70-5
Multi CAS
Yes
Molecular Formula
C14H18N4O3
Molecular Weight
290.320000
Exact Mass
290.137890
InChI
InChI=1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)
InChIKey
IEDVJHCEMCRBQM-UHFFFAOYSA-N

Physical Properties

Melting Point
390 to 397 °F (NTP, 1992) 199-203 °C 199 - 203 °C
Physical Description
Trimethoprim is an odorless white powder. Bitter taste. (NTP, 1992) Solid
Appearance
White to cream, crystalline powder
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
21
Aromatic heavy atom count
12
Fraction Csp3
0.29
Rotatable bonds
5
H-bond acceptors
7
H-bond donors
2
Molar refractivity
79.76
TPSA
105.51

LogP / Solubility

WLOGP
1.26
MLOGP
1.12
XLogP3
0.9
Consensus LogP
1.09
Log S (ESOL)
-2.53
Class (ESOL)
Moderately soluble
Log S (Ali)
-2.85
Class (Ali)
Moderately soluble
Log S (SILICOS-IT)
-3.19
Class (SILICOS-IT)
Poorly soluble

ADME

GI absorption
High
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
Yes
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.6

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
Yes
Veber
Yes
Egan
Yes
Muegge
Yes
Bioavailability score
0.55
Leadlikeness
Yes
Synthetic Accessibility
2.5

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