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CAS 16691-43-3 3-Amino-5-mercapto-1,2,4-triazole molecular structure lightbox
CAS RN: 16691-43-3

3-Amino-5-mercapto-1,2,4-triazole

Product Availability

Choose a grade to view its available package options.

12 package records11 with current stock4 grade groups
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20251024 100g In stock Inquiry
Batchno.20250905 250g In stock Inquiry
Batchno.20260211 25g In stock Inquiry
Batchno.20251206 500g In stock Inquiry
Batchno.20250102 5g In stock Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260411 100g In stock Shanghai, Shenzhen, Tianjin Inquiry
Batchno.20260214 10g In stock Shanghai, Shenzhen, Tianjin Inquiry
Batchno.20250625 25g In stock Shanghai, Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20250520 500g In stock Shanghai, Shenzhen, Tianjin, Chengdu Inquiry
Batchno.20250122 5g In stock Shanghai, Shenzhen, Tianjin, Wuhan, Chengdu Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20260426 1g / 5g / 25g / 100g / 500g / 2.5kg Confirm by inquiry Shanghai, Shandong, Chongqing, Guangdong, Hebei Inquiry
Batch No.PackageAvailabilityWarehouseLead TimeInquiry
Batchno.20250117 1g Out of stock 8-10 business days Inquiry
  • Product code: SSC-072825
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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: 500g
  • 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 16691-43-3
Pack Size Recorded Purity Available Qty Ship From Inquiry
500g ≥98% 0 Out of Stock Shanghai Inquiry

16691-43-3 / 5-amino-1,2-dihydro-1,2,4-triazole-3-thione

Standard CAS: 16691-43-3 Multi CAS: No
Basic Information Physical Properties Computed Properties Safety & Transport

Basic Information

CAS
16691-43-3
Multi CAS
No
Molecular Formula
C2H4N4S
Molecular Weight
116.150000
Exact Mass
116.015667
SMILES
C1(=NC(=S)NN1)N
InChI
InChI=1S/C2H4N4S/c3-1-4-2(7)6-5-1/h(H4,3,4,5,6,7)
InChIKey
WZUUZPAYWFIBDF-UHFFFAOYSA-N

Physical Properties

Physical Description
Dry Powder Off-white solid with odor of "stench"
State
Solid

Computed Properties

Structural Parameters

Heavy atom count
7
Aromatic heavy atom count
5
H-bond acceptors
3
H-bond donors
3
Molar refractivity
28.18
TPSA
70.49

LogP / Solubility

WLOGP
0.05
MLOGP
0.03
XLogP3
-0.8
Consensus LogP
-0.24
Log S (ESOL)
-1.12
Class (ESOL)
Soluble
Log S (Ali)
-0.55
Class (Ali)
Very soluble
Log S (SILICOS-IT)
-0.46
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)
-3.39

Drug-likeness / Medicinal Chemistry

Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Brenk alerts
1
Leadlikeness
No
Synthetic Accessibility
1.5

Safety & Transport

Pictogram(s)
Irritant
Signal
Warning
GHS Hazard Statements
H315 (46.1%): Causes skin irritation [Warning Skin corrosion/irritation] H319 (46.1%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] H335 (45.1%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Precautionary Statement Codes
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

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