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1079-21-6

1079-21-6 structure

1079-21-6 structure

Name: 2,5-Biphenyldiol
Chemical Name: Phenylhydroquinone
CAS Number: 1079-21-6
Molecular Formula: C₁₂H₁₀O₂
Molecular Weight: 186.207
Catalog: Chemical reagent Organic reagent Phenols
Create Date: 2018-07-15 17:49:54
Modify Date: 2026-07-16 11:03:03
TFIIH Modulator-12 is a small molecule destabilization inducer of the trichothiodystrophy group A protein (TTD-A or p8) dimerization which modulates TFIIH transcriptional activity.

Name	Phenylhydroquinone
Synonyms	TFIIH Modulator-12 EINECS 214-091-1 2,5-BIPHENYLDIOL 2,5-Dihydroxybiphenyl, 10 mM in DMSO 2,5-Dihydroxy-biphenyl 2,5-DIHYDROXYBIPHENYL 2,5-DIHYDROXYDIPHENYL Biphenyl-2,5-diol 2,5-Dihydroxybiphenyl 4-hydroxy-2-phenylphenol 2-Phenylhydroquinone,2,5-Biphenyldiol, 2,5-Dihydroxybiphenyl phenyl-hydroquinon 2-phenylhydroquinone MFCD00002342 2.5-Biphenyldiol 100mg [1-6] 2,5-Biphenyldiol, 2,5-Dihydroxybiphenyl [1,1'-Biphenyl]-2,5-diol Hydroquinone, phenyl Biphenyl-2,5-diol 2,5-Dihydroxybiphenyl@100 μg/mL in MeOH o-phenylhydroquinone 1,1'-Biphenyl]-2,5-diol BIPHENYL-2,5-DIOL 2-Phenylhydroquinone 1,4-Benzenediol, phenyl ORTHO-PHENYLHYDROQUINONE Phenylhydroquinone (2-PHQ) Phenylhydroquinone > PHENYLHYDROQUINONE Phenylhydroquinol 2-Phenyl-1,4-benzenediol 2,5-Dihydroxybiphenyl 2,5-Dihydroxybiphenyl,2,5-Biphenyldiol 1,1'-(BIPHENYL)-2,5-DIOL 2-Phenyl-1,4-dihydroxybenzene

Density	1.2±0.1 g/cm3
Boiling Point	383.0±30.0 °C at 760 mmHg
Melting Point	98-100 °C(lit.)
Molecular Formula	C₁₂H₁₀O₂
Molecular Weight	186.207
Flash Point	192.3±19.2 °C
Exact Mass	186.068085
PSA	40.46000
LogP	2.09
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.640

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DV4550000

CHEMICAL NAME :: 2,5-Biphenyldiol

CAS REGISTRY NUMBER :: 1079-21-6

BEILSTEIN REFERENCE NO. :: 1949429

LAST UPDATED :: 199806

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C12-H10-O2

MOLECULAR WEIGHT :: 186.22

WISWESSER LINE NOTATION :: QR DQ BR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1010 mg/m3/4H

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - acute pulmonary edema Lungs, Thorax, or Respiration - dyspnea Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex)

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 22 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/m3/6H/2W-I

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - dyspnea Endocrine - changes in spleen weight Endocrine - changes in thymus weight

TYPE OF TEST :: DNA adduct

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Ovary

DOSE/DURATION :: 100 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 259,1,1991

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	DV4550000
HS Code	2907299090

HS Code	2907299090
Summary	2907299090 polyphenols; phenol-alcohols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:30.0%

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