1,2-Phthalic dicarboxaldehyde (CAS 643-79-8) — formula C8H6O2, molecular weight 134.13; category organic chemicals.
Documented applications: Uses: Used as a disinfectant and in the fluorometric determination of primary amines and thiols, [Merck Index] Used to sterilize medical and dental equipment, as an enzyme inhibitor, indicator, chemical intermediate, diagnostic agent, tanning agent for leather, in water treatment, pulp and paper manufacturing, oil field water flooding, hair colorings, wood treatment, and antifouling paints, [NTP], Petroleum Production and Refining [Category: Industry], Pulp and Paper Processing [Category: Industry], Painting (Pigments, Binders, and Biocides) [Category: Paint], Applying Wood Preservatives [Category: Other], Using Disinfectants or Biocides [Category: Clean], Sterilizing Equipment [Category: Clean], Sewer and Wastewater Treatment [Category: Industry], Leather Tanning and Processing [Category: Industry], Dressing Hair [Category: Other], For o-phthalaldehyde (USEPA, OPP Pesticide Code: 129017) there are 0 labels match., SRP: Not registered for current use in the USA, but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Reagents used to synthesize fluorescent derivatives for chemical analyses: Derivatized compound: primary amines., From table, Disinfectant. Reagent in fluorometric determination of primary amines and thiols., o-Phthalaldehyde, ... in conjunction with 2-mercaptoethanol, is most often used in post-column detection of amino acids separated by conventional automated amino acid analysis., Use Classification: Environmental transformation -> Pesticide transformation products (metabolite, successor), General Manufacturing Information: 1, 2-Benzenedicarboxaldehyde: ACTIVE.
1,2-Phthalic dicarboxaldehyde is a carbon-based organic compound with CAS registry number 643-79-8 and molecular formula C8H6O2 (molecular weight 134.13), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 643-79-8
Its molecular formula C8H6O2 comprises 8 C, 6 H, 2 O atoms.
Also known as: 1,2-Phthalic dicarboxaldehyde · O-Phthalaldehyde
Category: organic chemicals
The CAS registry number of 1,2-Phthalic dicarboxaldehyde is 643-79-8.
Molecular formula C8H6O2, molecular weight 134.13.
It is also registered under: 1,2-Phthalic dicarboxaldehyde, O-Phthalaldehyde.
Recorded applications: Uses: Used as a disinfectant and in the fluorometric determination of primary amines and thiols, [Merck Index] Used to sterilize medical and dental equipment, as an enzyme inhibitor, indicator, chemical intermediate, diagnostic agent, tanning agent for leather, in water treatment, pulp and paper manufacturing, oil field water flooding, hair colorings, wood treatment, and antifouling paints, [NTP], Petroleum Production and Refining [Category: Industry], Pulp and Paper Processing [Category: Industry], Painting (Pigments, Binders, and Biocides) [Category: Paint], Applying Wood Preservatives [Category: Other], Using Disinfectants or Biocides [Category: Clean], Sterilizing Equipment [Category: Clean], Sewer and Wastewater Treatment [Category: Industry], Leather Tanning and Processing [Category: Industry], Dressing Hair [Category: Other], For o-phthalaldehyde (USEPA, OPP Pesticide Code: 129017) there are 0 labels match., SRP: Not registered for current use in the USA, but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Reagents used to synthesize fluorescent derivatives for chemical analyses: Derivatized compound: primary amines., From table, Disinfectant. Reagent in fluorometric determination of primary amines and thiols., o-Phthalaldehyde, ... in conjunction with 2-mercaptoethanol, is most often used in post-column detection of amino acids separated by conventional automated amino acid analysis., Use Classification: Environmental transformation -> Pesticide transformation products (metabolite, successor), General Manufacturing Information: 1, 2-Benzenedicarboxaldehyde: ACTIVE.
Category: Organic Chemicals.
Public-database records for 1,2-Phthalic dicarboxaldehyde (CAS 643-79-8), reproduced here for independent cross-checking.
| Reported hazard statements | H228 (44.3%), H301 (97.9%), H314 (74%), H315 (26%), H317 (97.4%), H318 (73.6%), H335 (28.1%), H373 (44.3%) |
|---|
H228 (44.3%): Flammable solid [Danger Flammable solids]
H301 (97.9%): Toxic if swallowed [Danger Acute toxicity, oral]
| 沸点 | BP: 83 °C at 0.8 mm Hg |
|---|---|
| 熔点 | 55.8 °C |
| 闪点 | 132 °C (270 °F) - closed cup |
| 闪点 | 132 °C c.c. |
| 溶解度 | In water, 5 g/100 mL at 20 °C |
| 密度 | 密度 (at 20 °C): 1.13 g/cm³ |
| 蒸气压 | 0.0052 [mmHg] |
| 蒸气压 | 0.0052 mm Hg at 21 °C (0.69 Pa) |
| LogP | log Kow = 0.51 |
| LogP | 0.99 (30 °C) |
| CAS Registry Number | 643-79-8 |
|---|---|
| PubChem CID | 4807 |
| 分子式 | C8H6O2 |
| IUPAC 名称 | phthalaldehyde |
| UNII（FDA） | 4P8QP9768A |
o-Phthalaldehyde; 643-79-8; PHTHALALDEHYDE; o-Phthaldialdehyde; 1,2-Benzenedicarboxaldehyde; Phthalic aldehyde; ortho-Phthalaldehyde; benzene-1,2-dicarbaldehyde; Phthalic dialdehyde; Phthalic dicarboxaldehyde; Phthalyldicarboxaldehyde; Phthalaldialdehyde; ortho Phthalaldehyde; o-Phthalicdicarboxaldehyde; 1,2-Diformylbenzene; phtharal
| 分子量 | 134.13 |
|---|---|
| XLogP3 | 1.2 |
| 氢键供体数 | 0 |
| 氢键受体数 | 2 |
| 可旋转键数 | 2 |
| 精确质量 | 134.036779430 |
| 单同位素质量 | 134.036779430 |
| 拓扑极性表面积 | 34.1 |
| 重原子数 | 10 |
| 形式电荷 | 0 |
1,2-Phthalic dicarboxaldehyde · CAS 643-79-8 · C8H6O2. UNII 4P8QP9768A. 沸点: BP: 83 °C at 0.8 mm Hg; 熔点: 55.8 °C; 闪点: 132 °C (270 °F) - closed cup.
Source: PubChem / Wikidata; the batch COA governs where values differ.
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