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Benzene-1,3,5-tricarbohydrazide

CAS Number 36997-31-6

Chemistry Building Blocks, COF Ligands, Materials, Monomers, Porous Organic Frameworks


Product Code B3871-500mg
Price $38 ex. VAT

Covalent Organic Frameworks (COFs) Phenyl Ligand

A trigonal bridging ligand linker for covalent polymeric frameworks (CPFs) in application of membrane, fluorescent probes and detection of lipid droplets


Specifications | MSDS | Literature and Reviews


Benzene-1,3,5-tricarbohydrazide (BCTH), CAS number 36997-31-6, has three carboxylic acid trihydrazide groups sitting at the 1,3,5-positions of a benzene ring.

Star-shaped triphenylamine-benzene-1,3,5-tricarbohydrazide molecule (TPA-TCH) with a twisted molecular conformation exhibited unusual multifunctional optical properties with three peripheral triphenylamine units and a central benzene bridged by flexible hydrazide groups.

Covalent organic gels prepared from benzene-1,3,5-tricarbohydrazide and 1,4-phthalaldehyde showed great stability in acidic media. They demonstrated high proton conductivity over wide temperature range of −40 to 60 °C under anhydrous conditions with state-of-the-art conductivity of 3.8 × 10−4 S cm–1 at −40 °C.

Constructed by using benzene-1,3,5-tricarbohydrazide, 2,4,6-trihydroxy-benzene-1,3,5-tricarbaldehyde (Tp) as building blocks, hydrazone-linked COF, TpBth, demonstrated a 2D framework with AA packing. The large number of carbonyl groups as well as −NH–NH2– groups on the backbone are responsible for high water absorption capacity and great chemical stability. The highest water-assisted proton conductivity value of TpBth can reach 2.11 × 10–4 S cm–1, among the high proton conductivity values of the reported COFs.

MOF and COF ligands

MOF and COF ligands

Hydrazide ligand for cross-linked COF networks

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High purity 36997-31-6

High purity

>97% High purity

Facile reactions

Facile reactions

Hydrazide possesses excellent reactivity

General Information


CAS Number 36997-31-6
Chemical Formula C9H12N6O3
Full Name Benzene-1,3,5-tricarbohydrazide
Molecular Weight 252.23 g/mol
Synonyms BTCH, Benzene-1,3,5-tricarboxylic acid trihydrazide, 1,3,5-tricarbohydrazine benzene
Family Tricarbohydrazides, Tricarbohydrazines, COFs

Chemical Structure


36997-31-6 - benzene-1,3,5-tricarbohydrazide chemical structure
Benzene-1,3,5-tricarbohydrazide (BCTH) Chemical Structure, 36997-31-6

Product Details


Purity >97%
Melting Point 300 °C (dec.)
Appearance White to off-white powder/crystals

MSDS Documentation


36997-31-6 - benzene-1,3,5-tricarbohydrazideBenzene-1,3,5-tricarbohydrazide MSDS Sheet

Literature and Reviews


  1. Design, Preparation, and High Intrinsic Proton Conductivity of Two Highly Stable Hydrazone-Linked Covalent Organic Frameworks, S. Zhang et al., ACS Appl. Mater. Interfaces, 15 (27), 33148–33158 (2023); DOI: 10.1021/acsami.3c05990.
  2. Inorganic Acid-Impregnated Covalent Organic Gels as High-Performance Proton-Conductive Materials at Subzero Temperatures, H. Zhong et al., Adv. Funct. Mater., 27 (32), 1701465 (2017); DOI: 10.1002/adfm.201701465.
  3. Controlled Self-Assembly, Isomerism, and Guest Uptake/Release of Charge-Reversible Lanthanide–Organic Octahedral Cages, L. Zhou et al., J. Am. Chem. Soc., 145 (32), 17845–17855 (2023); DOI: 10.1021/jacs.3c04921.
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