Ingredient Dictionary

2,6-DICARBOXYPYRIDINE

Dipicolinic acid is a pyridinedicarboxylic acid carrying two carboxy groups at positions 2 and 6.

Definition

Dipicolinic acid is a pyridinedicarboxylic acid carrying two carboxy groups at positions 2 and 6. It has a role as a bacterial metabolite. It is a conjugate acid of a dipicolinate(1-).

Source: PubChem

US FDA substance register · UNII UE81S5CQ0G · registered name 2,6-PYRIDINEDICARBOXYLIC ACID · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Binds metal ions to prevent spoilageCHELATING

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name ２，６－ジカルボキシピリジン: 本品は、次の化学式で表される複素環式化合物である。

Source: JCIA labelling names (Japan)

Names & identifiers

2,6-DICARBOXYPYRIDINEINCI2,6-다이카복시피리딘Korean label name (MFDS standard)2,6-Pyridinedicarboxylic acidSynonym２，６－ジカルボキシピリジンJapanese labelling name

CAS No.chemical registry number: 499-83-2
EC No.EU chemical inventory number: 207-894-3
DTXSIDUS EPA chemical ID: DTXSID7022043
DTXCIDUS EPA compound ID: DTXCID602043

IUPAC: Pyridine-2,6-dicarboxylic acid
Molecular formula: C7H5NO4
Molecular weight: 167.12 g/mol

Measured properties

Appearance: solid
Colour: white
Melting/freezing point: 252 ℃
Initial boiling point and range: 357 ℃
Flash point: 188 ℃
Vapour pressure: 0.0000061 ㎜Hg (25℃ est.)
Water solubility: 5000 ㎎/ℓ (20℃)
n-Octanol/water partition coefficient (Kow): 0.57
Auto-ignition temperature: 620 ℃
Decomposition temperature: 233-255 ℃
Molecular weight: 167.12

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: KOSHA safety data sheets (Korea)

What products actually use it for

What the 2 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Chelating agent1
Catalyst1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 1 eye studies are on record.

Classed as moderate1

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 3 studies

Category 6.3A (Category 2)
Skin Irritation · Read Across
SkinSens1
Skin Sensitization · QSAR Predicted
Category 6.4A (Category 2A)
Eye Irritation · Read Across