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Substance Name: Xylenes
RN: 1330-20-7
UNII: D856J1047R
Note
- A family of isomeric, colorless aromatic hydrocarbon liquids, that contain the general formula C6H4(CH3)2. They are produced by the destructive distillation of coal or by the catalytic reforming of petroleum naphthenic fractions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed).
Molecular Formula
- C8-H10
Molecular Weight
- 107.1749
- All
- Classifications
- Links to Resources
- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
Classification Codes
Classification Codes
- Agricultural Chemical
- Human Data
- Mutation Data
- Reproductive Effect
- Skin / Eye Irritant
- Tumor Data
Superlist Classification Codes
- 2007 CERCLA Priority List, Rank: 58
- 2011 CERCLA Priority List, Rank: 62
- Overall Carcinogenic Evaluation: Group 3
- Reportable Quantity (RQ) = 1000 lb
- TWA (100 ppm); STEL (150 ppm); Not classifiable as a human carcinogen; BEI
- TWA 100 ppm (435 mg/m3)
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Links to Resources
NLM Resources (File Locators)
Regulatory Agencies (Superlist Locators)
Other Resources (Internet Locators)
Names and Synonyms
Results Name
- Xylenes
Name of Substance
- Benzene, dimethyl-
- Dimethylbenzene
- Xylene
- Xylenes
MeSH Heading
- Xylenes
Synonyms
- 4-05-00-00951 (Beilstein Handbook Reference)
- AI3-02209-X
- Benzene, dimethyl-
- BRN 1901563
- Caswell No. 906
- CCRIS 903
- Dimethylbenzene
- EC 215-535-7
- EINECS 215-535-7
- EPA Pesticide Chemical Code 086802
- HSDB 4500
- Ksylen
- Ksylen [Polish]
- Methyl toluene
- Methyltoluene
- NCI-C55232
- RCRA waste number U239
- UN 1307
- UNII-D856J1047R
- Violet 3
- Xiloli
- Xiloli [Italian]
- Xylene
- Xylenen
- Xylenen [Dutch]
- Xylenes
- Xylol
- Xylole
- Xylole [German]
Systematic Names
- Benzene, dimethyl-
- Xylene
- Xylene, mixed isomers, pure
- Xylenes (mixed)
Superlist Names
- Benzene, dimethyl-
- Dimethylbenzene
- RCRA waste no. U239
- Xylene
- Xylene (mixed isomers)
- Xylene, isomers
- Xylene, mixed
- Xylenes (isomers and mixture)
- Xylenes (mixed)
- Xylenes, total
Registry Numbers
CAS Registry Number
- 1330-20-7
FDA UNII
- D856J1047R
Other Registry Number
- 8026-09-3
System Generated Number
- 0001330207
Structure Descriptors
Smiles
[*]C.Cc1ccccc1Toxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LCLo | inhalation | 450ppm (450ppm) | LIVER: FATTY LIVER DEGERATION LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Journal of Industrial Hygiene. Vol. 10, Pg. 261, 1928. |
| guinea pig | LDLo | intraperitoneal | 2gm/kg (2000mg/kg) | LIVER: FATTY LIVER DEGERATION | American Industrial Hygiene Association Journal. Vol. 35, Pg. 21, 1974. |
| human | LDLo | oral | 50mg/kg (50mg/kg) | Gekkan Yakuji. Pharmaceuticals Monthly. Vol. 22, Pg. 883, 1980. | |
| human | TCLo | inhalation | 200ppm (200ppm) | SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Journal of Industrial Hygiene and Toxicology. Vol. 25, Pg. 282, 1943. |
| mammal (species unspecified) | LC50 | inhalation | 30gm/m3 (30000mg/m3) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 32(10), Pg. 25, 1988. | |
| mammal (species unspecified) | LD50 | oral | 4300mg/kg (4300mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 32(10), Pg. 25, 1988. | |
| mammal (species unspecified) | LDLo | intraperitoneal | 2gm/kg (2000mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) BEHAVIORAL: IRRITABILITY BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | American Journal of Hygiene. Vol. 7, Pg. 276, 1927. |
| man | LCLo | inhalation | 10000ppm/6H (10000ppm) | BLOOD: OTHER CHANGES LUNGS, THORAX, OR RESPIRATION: CYANOSIS BEHAVIORAL: GENERAL ANESTHETIC | British Medical Journal. Vol. 3, Pg. 442, 1970. |
| mouse | LD50 | intraperitoneal | 1548mg/kg (1548mg/kg) | Archiv fuer Gewerbepathologie und Gewerbehygiene. Vol. 18, Pg. 109, 1960. | |
| mouse | LD50 | oral | 2119mg/kg (2119mg/kg) | EHP, Environmental Health Perspectives. Vol. 106(Suppl, | |
| rabbit | LD50 | skin | > 1700mg/kg (1700mg/kg) | Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. Vol. 1, Pg. 123, 1974. | |
| rabbit | LDLo | intravenous | 129mg/kg (129mg/kg) | Haematologica. Vol. 58, Pg. 491, 1973. | |
| rat | LC50 | inhalation | 5000ppm/4H (5000ppm) | Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. Vol. 1, Pg. 123, 1974. | |
| rat | LD50 | intraperitoneal | 2459mg/kg (2459mg/kg) | Environmental Research. Vol. 40, Pg. 411, 1986. | |
| rat | LD50 | oral | 4300mg/kg (4300mg/kg) | KIDNEY, URETER, AND BLADDER: OTHER CHANGES LIVER: OTHER CHANGES | AMA Archives of Industrial Health. Vol. 14, Pg. 387, 1956. |
| rat | LD50 | subcutaneous | 1700mg/kg (1700mg/kg) | Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. Vol. 1, Pg. 123, 1974. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Boiling Point | 138.5 | deg C | EXP | |
| log P (octanol-water) | 3.16 | (none) | EXP | |
| Water Solubility | 106 | mg/L | 25 | EXP |
| Vapor Pressure | 7.99 | mm Hg | 25 | EXP |
| Henry's Law Constant | 0.00663 | atm-m3/mole | 25 | EXP |
| Atmospheric OH Rate Constant | 1.87E-11 | cm3/molecule-sec | 25 | EXP |
Physical property data is provided to ChemIDplus by SRC, Inc.