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o-Phenylenediamine, 98% Catalog No.: AAA1194614
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o-Phenylenediamine, 98%

Catalog No. AAA1194614
25 g
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Catalog No. AAA1194614

Supplier: Thermo Scientific Chemicals A1194614

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CAS: 95-54-5 | C6H8N2 | 108.144 g/mol

o-phenylenediamine is used to prepare tiabendazole, pyrazinamide, morinamide, clemizole and chlormidazole. It is involved in the synthesis of benzimidazole by reacting with carboxylic acids and their derivatives. It is also used to prepare quinoxalinedione and mercaptoimidazoles by condensation with dimethyl oxalate and xanthate esters respectively. It reacts with nitrous acid to get benzotriazole, which finds application as a corrosion inhibitor. It is actively involved in the preparation of pharmaceuticals by reacting substituted o-phenylenediamine with various diketones.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
o-phenylenediamine is used to prepare tiabendazole, pyrazinamide, morinamide, clemizole and chlormidazole. It is involved in the synthesis of benzimidazole by reacting with carboxylic acids and their derivatives. It is also used to prepare quinoxalinedione and mercaptoimidazoles by condensation with dimethyl oxalate and xanthate esters respectively. It reacts with nitrous acid to get benzotriazole, which finds application as a corrosion inhibitor. It is actively involved in the preparation of pharmaceuticals by reacting substituted o-phenylenediamine with various diketones.

Solubility
Soluble in alcohol, chloroform, ether, slightly soluble in water. Soluble in hot water.

Notes
Moisture and air sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 95-54-5
Molecular Formula C6H8N2
Molecular Weight (g/mol) 108.144
MDL Number MFCD00007721
InChI Key GEYOCULIXLDCMW-UHFFFAOYSA-N
Synonym o-phenylenediamine, 1,2-phenylenediamine, 1,2-benzenediamine, 1,2-diaminobenzene, 2-aminoaniline, o-diaminobenzene, orthamine, o-benzenediamine, opda, ortho-phenylenediamineShow MoreShow Less
PubChem CID 7243
ChEBI CHEBI:34043
IUPAC Name benzene-1,2-diamine
SMILES C1=CC=C(C(=C1)N)N

Specifications

Melting Point 100°C to 103°C
Density 1.27
Boiling Point 256°C to 258°C
Flash Point 136°C (277°F)
Assay Percent Range 98%
Quantity 25 g
UN Number UN1673
Beilstein 606074
Sensitivity Air Sensitive
Merck Index 14,7284
Solubility Information Soluble in alcohol,chloroform,ether,slightly soluble in water; Soluble in hot water.
Formula Weight 108.14
Percent Purity 98%
Chemical Name or Material o-Phenylenediamine
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Certificates

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5 results found
Lot Number Certificate Type Date Catalog Number
Lot Number10247403 Certificate TypeCertificate of Analysis Date05/17/2025 Catalog NumberA1194630,A119460I,A119460B,A1194614
Lot Number10246123 Certificate TypeCertificate of Analysis Date05/17/2025 Catalog NumberA1194630,A119460I,A119460B,A1194614
Lot Number236175 Certificate TypeCertificate of Analysis Date06/11/2024 Catalog NumberA119430I,A119470E,A1192414,A1191722,A1194436,A1197422,A1195006,A1199206,A11932AP,A1191714,A1195918,A1192406,A119850I,A119430B,A1195014,A11905AU,A1193636,A1196903,A1196506,A1195414,A1196503,A1199214,A1195930,A1190914,A1193506,A11905AP,A119040I,A1197206,A1194330,A1199506,A1194736,A1199222,A1193406,A1198530,A1191106,A1194614,A119840E,A119880E,A1196906,A119000E,A119040B,A1199914,A1191514,A1193414,A1196803,A1196009,A1198422,A1193014,A1197214,A1199514,A1192318,A1191506,A1199406,A1194630,A1196136,A1198714,A1192330,A1192614,A1196418,A1199003,A1190430,A1199006,A1196018,A1190036,A1199403,A1194906,A1196806,A1194122,A1197914,A1193314,A11910AE,A1194522,A1195214,A1194914,A1192230,A1198218,A1195222,A1198736,A1197806,A1190214,A1194814,A1194536,A1196714,A1194136,A1190606,A11910AP,A1190206,A1196030,A119440E,A1197536,A1194822,A11932AE,A1193336,A1197136,A1194422,A1195236,A1190614,A1195509,A1192518,A119590B
Lot Number10247403 Certificate TypeCertificate of Analysis Date07/25/2023 Catalog NumberA1194630,A119460I,A119460B,A1194614
Lot Number10239379 Certificate TypeCertificate of Analysis Date04/12/2022 Catalog Number
Hazard Category H301-H312+H332-H317-H319-H341-H351-H500
Hazard Statement GHS H Statement
H301-H341-H351-H312-H332-H319-H317
Toxic if swallowed.
Suspected of causing genetic defects.
Suspected of causing cancer.
Harmful in contact with skin.
Harmful if inhaled.
Causes serious eye irritation.
May cause an allergic skin reaction.
Precautionary Statement P201-P202-P261-P264b-P270-P271-P272-P280-P281-P301+P310-P302+P352-P304+P340-P305+P351+P338-P308+P313-P312-P330-P333+P313-P363-P501c
DOTInformation Transport Hazard Class: 6.1; Packing Group: III; Proper Shipping Name: PHENYLENEDIAMINES
EINECSNumber 202-430-6
RTECSNumber SS7875000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only

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