Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Isovaleric acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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503-74-2

503-74-2 structure

Name: 3-Methylbutanoic acid
Chemical Name: isovaleric acid
CAS Number: 503-74-2
Molecular Formula: C₅H₁₀O₂
Molecular Weight: 102.132
Catalog: Organic raw materials Carboxylic compounds and derivatives Acyclic carboxylic acid
Create Date: 2018-06-18 17:59:21
Modify Date: 2026-07-01 23:48:32
3-Methylbutanoic acid is a natural fatty acid and known to effect on neonatal death and possible Jamaican vomiting sickness in human.

Name	isovaleric acid
Synonyms	1,1-DIMETHYLPROPYL 3-METHYLBUTANOATE Butanoic acid,3-methyl-,1,1-dimethylpropyl ester ISOVALERICACIDANDITSCOMMONSALTS RECHEM AL BO 0154 ISOVALERIC ACID(SG) Isovaleric acid Isovalericacid ISOVALERIC ACID STANDD isobutanoic acid 3-METHYLBUTYRIC ACID 3-methylbutyrate ISOVALERIC ACID, NATURAL Aceticacid,isopropyl isovalerianicacid Isovaleric acid, synthesis ade 3-methyl butyric acid ISOVALERIC ACID NATURAL ISOVALERIANSAEURE Isopentanoic acid-3-Methylbutyric acid Isovaleric acid,3-Methylbutanoic acid, 3-Methylbutyric acid i-Valcrians1 QV1Y1&1 isopropyl-aceticaci 3-Methylbutanoic acid, 3-Methylbutyric acid i-butanoic acid femanumber isovalerianic 3-methyl-butyricaci 3-Methyl-n-butyric acid β-methylbutyric acid Isovaleriansaeure-tert-pentylester 3-Methylbutyric Acid 3-Methyl butancic acid Butanoicacid,3-methyl delphinicacid methyl butanoic acid Isovaleric aci #niso-Valeric acid iso-C4H9COOH VALERIC ACID FCC iso-valeric acid Acetic acid, isopropyl 3-METHYLBUTANOIC ACID BETA-METHYLBUTYRIC ACID isobutylformicacid Butyric acid, 3-methyl Isovalerianic acid Isovaleric acid (mixture of isomers) ISOPROPYLACETIC ACID Isovleric Acid 2-Isovalerylamino-naphthalin kyselinaisovalerova ISOVALERIC ACID isopentanoic 3-Methylbutanoic acid,3-Methylbutyric acid Isovaleric acid, R MFCD00002726 Delphinic acid isovalericacid,3-methylbutanoicacid,methylbutyricacid Isopropylessigsαure ISOVALERIC ACID WITH 3-Methyl-n-butyricacid acideisovalerique tert-Amyl isovalerate ISOPENTANOIC ACID 3-Methylbuttersαure EINECS 207-975-3 Isovaleriansαure tert-Pentyl alcohol,isovalerate iso-Valeric acid (acidimetric) Kyselina isovalerova 3-methyl-butanoic acid,1,1-dimethylpropyl ester

Description	3-Methylbutanoic acid is a natural fatty acid and known to effect on neonatal death and possible Jamaican vomiting sickness in human.
Related Catalog	Natural Products >> Acids and Aldehydes Research Areas >> Metabolic Disease
Target	Human Endogenous Metabolite
References	[1]. Ackman RG, et al. Birthweights in the Faroe Islands: possible role of isovaleric acid. J Intern Med. 1989 Feb;225(2):73-5.

Density	1.0±0.1 g/cm3
Boiling Point	175.3±8.0 °C at 760 mmHg
Melting Point	-35 °C
Molecular Formula	C₅H₁₀O₂
Molecular Weight	102.132
Flash Point	70.6±0.0 °C
Exact Mass	102.068077
PSA	37.30000
LogP	1.13
Vapour Pressure	0.6±0.7 mmHg at 25°C
Index of Refraction	1.418
Water Solubility	25 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: NY1400000

CHEMICAL NAME :: Isovaleric acid

CAS REGISTRY NUMBER :: 503-74-2

BEILSTEIN REFERENCE NO. :: 1098522

LAST UPDATED :: 199710

DATA ITEMS CITED :: 12

MOLECULAR FORMULA :: C5-H10-O2

MOLECULAR WEIGHT :: 102.15

WISWESSER LINE NOTATION :: QV1Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/31/1972

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 17,841,1979

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/31/1972 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2 mL/kg

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

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/31/1972

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1120 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold

REFERENCE :: APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 18,141,1961

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 310 uL/kg

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

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 1/31/1972 *** REVIEWS *** TOXICOLOGY REVIEW AMIHAB AMA Archives of Industrial Health. (Chicago, IL) V.11-21, 1955-60. For publisher information, see AEHLAU. Volume(issue)/page/year: 21,100,1960 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84451 No. of Facilities: 35 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 69 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84451 No. of Facilities: 148 (estimated) No. of Industries: 4 No. of Occupations: 16 No. of Employees: 6695 (estimated) No. of Female Employees: 1037 (estimated)

Symbol	GHS05
Signal Word	Danger
Hazard Statements	H314
Precautionary Statements	P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C:Corrosive;T:Toxic;
Risk Phrases	R22;R24;R34
Safety Phrases	S26-S36/37/39-S45-S38-S28A
RIDADR	UN 3265 8/PG 2
WGK Germany	1
RTECS	NY1400000
Packaging Group	III
Hazard Class	6.1
HS Code	2915600000

Precursor 8
541-47-9 108-10-1 3002-23-1 78-77-3
124-38-9 123-51-3 201230-82-2 75-65-0
DownStream 10
111216-73-0 324763-39-5 557-00-6 3739-30-8
387353-71-1 55066-56-3 595-37-9 646-07-1
4026-18-0 91007-67-9

HS Code	2915900090
Summary	2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

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