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2,3-Diaminopyridine

HCID 9956
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Basic information

CAS
452-58-4
Standard SMILES
Nc1cccnc1N
InChIKey
ZZYXNRREDYWPLN-UHFFFAOYSA-N
Molecular formula
C5H7N3
Average molar mass
109.13 g/mol
Monoisotopic mass
109.06399722

Overview

2,3-Diaminopyridine is an aminopyridine.

Names & identifiers

Preferred name
2,3-Diaminopyridine
IUPAC
pyridine-2,3-diamine
English name
2,3-Diaminopyridine
Molecular formula
C5H7N3
Molecular weight
109.13

Names & synonyms

2,3-Diaminopyridine452-58-42,3-PyridinediaminePyridine, 2,3-diamino-DTXSID0051493CBX394737HNSC-45406DTXCID9030676RefChem:81548207-200-9pyridine-2,3-diamineMFCD00006319
Show more names
3-DiaMinopyridine2,3-diamino-pyridinTIMTEC-BB SBB004339Pyridin-2,3-diaMine2,3-Diaminopyridine99%2,3-Diaminopyridine,98%
Pyridine-2,3-diyldiamine2,3-diamino-pyridineEINECS 207-200-9NSC 45406BRN 0109869UNII-CBX394737H2,3-Pyridinediamine; N2-Benzyl-2,3-pyridinediamine; NSC 45406AI3-52327

Database identifiers

CAS
452-58-4
PubChem CID
9956
DTXSID
DTXSID0051493
ChEBI
CHEBI:195591
UNII
CBX394737H
EC Number
207-200-9
Nikkaji
J79.620D

Properties

Computed structural properties

XLogP
-0.2
Topological polar surface area
64.9 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
3
Rotatable bonds
0
Heavy atoms
8
Formal charge
0
Complexity
74.1

Experimental & physicochemical properties

Collision Cross Section118.5 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID0051493]

Physicochemical properties

Melting point
110 · 110-115 °C (lit.)
Boiling point
195 °C · 195°C 55mm
Density
1.1118 · 1.1118 (rough estimate)
refractive index
1.534 · 1.5340 (estimate)
Flash point
205 °C · 205 °C
storage temp.
Keep in dark place,Sealed in dry,Room Temperature
solubility
2 O: · H2O: soluble50mg/mL, opaque (brown to very dark brown)
form
Solid
pka
6.78 · 6.78±0.36(Predicted)
color
Very Dark Brown
Water Solubility
100 g/L · 100 g/L (20 ºC)
Sensitive

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Danger

H301 (15.2%): Toxic if swallowed [Danger Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P280, P301+P316, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 46 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazard Classes and CategoriesAcute Tox. 3 (15.2%)

Safety data

F
9
PPE
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
wgk
3
rtecs
US7548000
ridadr
UN 2811
hs_code
29333999
risk_code
22-36/37/38-25
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xn,Xi,T
hazard_note
Irritant
safety_code
26-36/37-45-37/39-28A-36
hazard_class
6.1
Storage Class
11 - Combustible Solids
packing_group
II

Chemistry & industry

Applications · 2 items

Uses2,3-Diaminopyridine was used in the synthesis of 2,3-diaminopyridinium-4-hydroxybenzoate1. It was used as internal standard in analysis of poly(amidoamine)dendrimers having different terminal functionalities by capillary electrophoresis. It was used as reagent in synthesis of imidazopyridines and organometallic complexes.

General Description2,3-Diaminopyridine forms the bis-condensed Schiff base with salicylaldehyde. It forms charge transfer complex with tetrachloro-p-benzoquinone and tetracyanoethylene.

Upstream & downstream products

Upstream raw materials

2-Amino-3-nitropyridinePalladiumEthyl acetate

Downstream products

4-Azabenzimidazole1-Acetyl-1H-1,2,3-triazolo[4,5-b]pyridine8-Chloro-[1,7]naphthyridine2-(2-Pyridyl)benzimidazole2-Phenyl-3,5-dihydro-pyrido[3,4-b][1,4]diazepin-4-one2-Cyclopentyl-1H-imidazo[4,5-b]pyridineIMidazo[1,2-a]pyridin-8-aMine, 2-(trifluoroMethyl)-3H-Imidazo[4,5-b]pyridine-2-methanamine, N-methyl-

Related reactions

165 records
New reaction record
HRID 4292 reaction equation
HRID 4292As reactantuspto-grants-1988_02
HRID 5735 reaction equation
HRID 5735As reactantuspto-grants-1993_09
HRID 10698 reaction equation
HRID 10698As reactantuspto-grants-2006_08
HRID 14379 reaction equation
HRID 14379As reactantuspto-grants-2010_06
HRID 20068 reaction equation
HRID 20068As reactantuspto-grants-2010_06
HRID 82573 reaction equation
HRID 82573As reactantuspto-grants-2014_09
HRID 101505 reaction equation
HRID 101505As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 161089 reaction equation
HRID 161089As reactantTraining data from https://doi.org/10.1039/C8SC04228D (9/10)
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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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Air Sensitive
BRN
109869 · 109869
InChI
1S/C5H7N3/c6-4-2-1-3-8-5(4)7/h1-3H,6H2,(H2,7,8)
InChIKey
ZZYXNRREDYWPLN-UHFFFAOYSA-N
SMILES
Nc1cccnc1N
CAS DataBase Reference
452 · 452-58-4(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
394737 H · CBX394737H
NIST Chemistry Reference
2 · 2,3-Pyridinediamine(452-58-4)
UNSPSC Code
12352116 · 12352116
NACRES
22 · NA.22
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
315 · H315-H319-H335
Precautionary statements
261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs
Respiratory system
PPE
95 · dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes
Xn,Xi,T
Risk Statements
22 · 22-36/37/38-25
Safety Statements
26 · 26-36/37-45-37/39-28A-36
RIDADR
2811 · UN 2811
WGK Germany
3 · 3
RTECS
7548000 · US7548000
F
9 · 9
Hazard Note
Irritant
HazardClass
6.1 · 6.1
PackingGroup
II
HS Code
29333999 · 29333999
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
2 Skin · Eye Irrit. 2Skin Irrit. 2STOT SE 3
target organs
Respiratory system
Hazard statements
H315-H319-H335
Hazard Classifications
Eye Irrit. 2Skin Irrit. 2STOT SE 3
Precautionary statements
P261-P264-P271-P280-P302+P352-P305+P351+P338
2-(2,7,9-triazabicyclo[4.3.0]nona-2,4,8,10-tetraen-8-yl)acetonitrile
Acetamide, N-imidazo[1,2-a]pyridin-8-yl-
1',3'-Dihydrospiro[cyclohexane-1,2'-[2H]imidazo[4,5-b]pyridine]
2-(3-pyridinyl)-3H-imidazo[4,5-b]pyridine