CROTONIC ACID (BETA-METHYLACRYLIC ACID)

CROTONIC ACID

PRODUCT IDENTIFICATION

CAS NO.

3724-65-0

CROTONIC ACID

EINECS NO. 223-077-4

FORMULA CH₃CH=CHCOOH

MOL WT. 86.09

H.S. CODE

TOXICITY Oral rat LD50: 1000 mg/kg

SYNONYMS beta-Methylacrylic acid; 3-Methyl- Acrylic acid;

2-Butenoic acid; alpha-Butenoic acid; 3-Methylacrylic acid; alpha-Crotonic acid; Kyselina krotonova; Crotonsäure (German); ácido crotónico (Spanish); Acide crotonique (French);

SMILES

CLASSIFICATION

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to off-white crystals

MELTING POINT 70 - 73 C

BOILING POINT 185 C

SPECIFIC GRAVITY 0.963

SOLUBILITY IN WATER Soluble (94 g/l)

VAPOR DENSITY

AUTOIGNITION

208 C

NFPA RATINGS

Health: 3; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

FLASH POINT 88 C

STABILITY stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Crotonic acid is a member of short and unsaturated chain carboxylic acids; trans-2-butenoic acid in IUPAC sysytem name and 3-methylacrylic acid in acrylic acid series naming. It is a white to off-white crystals; soluble in water (the solution is a weak acid); melting at 71 C; boiling at 185 C. It reacts violently with bases, oxidants, reducing agents. It is found in croton oil used as a standard irritant in pharmacological research; laxative and poisonous to human. Tiglic acid is structurally the trans- form of methyl branched crotonic acid found in croton oil (trans-2,3-Dimethylacrylic acid in acrylic acid series naming). The cis- form of methyl branched crotonic acid is called angelic acid obtainable naturally from roots of Angelica plant. They are onoclinic poisonous crystals; soluble in hot water. They have a reactive solid bond and carboxylic group in one molecule. They can be used as co-monomers for polymerization to prepare functional polymers as well as in protein sequencing and enzyme inhibiting. Their derivatives, acyl halides, anhydrides, esters, amides and nitriles, are used in making target products such as flavoring agents, internal plasticizers, pesticides, dyes, textile treatment agents, fungicides, and pharmaceuticals through further reactions of substitution, catalytic reduction, metal hydride reduction, diborane reduction, keto formation with organometallic reagents, electrophile bonding at oxygen, and Claisen condensation on carboxylic group and electrophilic additions, reduction, oxidation, radical additions, substitution and dienes formation on solid bond.

SALES SPECIFICATION

APPEARANCE

white to off-white crystals

PURITY

99.0% max

ISOMERS

0.3% max

MOISTURE

0.5% max

COLOR

10 max (Hazen)

TRANSPORTATION

PACKING 25kgs in bag

HAZARD CLASS 8 (Packing Group: III)

UN NO. 2823

OTHER INFORMATION

Hazard Symbols: F, Risk Phrases: 21/22-34, Safety Phrases: 25-36/37/39-45

UNSATURATED ALIPHATIC CARBOXYLIC ACID PARENT COMPOUNDS (SHORT CHAIN)

ACRYLIC ACID CAS NUMBER : 79-10-7 EINECS NUMBER : 201-177-9 OTHER CHEMICAL NAME(S): Acroleic acid; 2-Propenoic acid; Acrylate; Ethylenecarboxylic acid; propene acid; Propenoic acid; Vinylformic Acid; Acide acrylique (French); Acido acrilio (Spanish); Kyselina akrylova(Czech); MELTING POINT(S): 12 C	CH₂=CHCOOH (72.06)
PROPIOLIC ACID AS NUMBER : 471-25-0 EINECS NUMBER : 207-437-8 OTHER CHEMICAL NAME(S): 2-Propynoic acid; Acetylenecarboxylic Acid; Prop-2-ynoic acid; Propargylic acid; Propynoic acid; MELTING POINT(S): 16 C	CH��CHCOOH (70.05)
METHACRYLIC ACID CAS NUMBER : 79-41-4 EINECS NUMBER : 201-204-4 OTHER CHEMICAL NAME(S): MAA; 2-Methylenepropionic Acid; 2-Methacrylic acid; 2-Methyl-2-propenoic Acid; Acide methacrylique (French); Acido metacrilico (Spanish); alpha-Methylacrylic acid; Kyselina methakrylova (Czech); MELTING POINT(S): 14 - 15 C	H₂C=C(CH₃)COOH (86.09)
CROTONIC ACID CAS NUMBER : 3724-65-0 EINECS NUMBER : 223-077-4 OTHER CHEMICAL NAME(S): beta-Methylacrylic acid; 3-Methyl- Acrylic acid; 2-Butenoic acid; alpha-Butenoic acid; 3-Methylacrylic acid; alpha-Crotonic acid; Kyselina krotonova; MELTING POINT(S): 73 C	CH₃CH=CHCOOH (86.09)
ISOCROTONIC ACID CAS NUMBER : 503-64-0 EINECS NUMBER : OTHER CHEMICAL NAME(S): (Z)-2-Butenoic acid; (Z)-Crotonic acid; cis-Crotonic Acid; cis-2-Butenoic Acid; MELTING POINT(S):	CH₃CH=CHCOOH (86.09)
VINYLACETIC ACID CAS NUMBER : 625-38-7 EINECS NUMBER : 210-892-5 OTHER CHEMICAL NAME(S): 3-Butenoic acid; beta-Butenoic acid; Ethenyl Acetic acid; MELTING POINT(S): -39 C	CH₂=CHCH₂COOH (86.09)
2-PENTENOIC ACID CAS NUMBER : 626-98-2 EINECS NUMBER : OTHER CHEMICAL NAME(S): Pent-2-enoic acid; MELTING POINT(S):	C₂H₅CH=CHCOOH (100.12)
trans-2-PENTENOIC ACID CAS NUMBER : 13991-37-2 EINECS NUMBER : 237-791-9 OTHER CHEMICAL NAME(S): (E)-2-Pentenoic acid; (2E)-2-Pentenoic acid; trans-Pent-2-enoic acid; MELTING POINT(S): 9 C	C₂H₅CH=CHCOOH (100.12)
3-PENTENOIC ACID CAS NUMBER : 5204-64-8 EINECS NUMBER : OTHER CHEMICAL NAME(S): Pent-3-enoic acid; MELTING POINT(S):	CH₃CH=CHCH₂COOH (100.12)
trans-3-PENTENOIC ACID CAS NUMBER : 1617-32-9 EINECS NUMBER : OTHER CHEMICAL NAME(S): (E)-3-Pentenoic acid; trans-Pent-3-enoic acid; MELTING POINT(S):	CH₃CH=CHCH₂COOH (100.12)
ALLYLACETIC ACID CAS NUMBER : 591-80-0 EINECS NUMBER : 209-732-7 OTHER CHEMICAL NAME(S): 4-Pentenoic acid; Pent-4-enoic acid; 4-PA; MELTING POINT(S): -22 C	CH₂=CH₂CH₂CH₂COOH (100.12)
MALEIC ACID CAS NUMBER : 110-16-7 EINECS NUMBER : 203-742-5 OTHER CHEMICAL NAME(S): Hydroxysuccinic Acid; 2-butenedioic acid; cis-1,2-ethenedicarboxylic acid; cis-2-butenedioic acid; cis-butenedioic acid; cis-ethene-1,2-dicarboxylic acid; cis-maleic acid; Malenic Acid; Toxilic acid; (Z)-1,2-ethenedicarboxylic acid; (Z)-2-butenedioic acid; MELTING POINT(S): 138 C	HOOCCH=CHCOOH (116.07)
FUMARIC ACID CAS NUMBER : 110-17-8 EINECS NUMBER : 203-743-0 OTHER CHEMICAL NAME(S): 2-Butenedioic acid; `1,2-Ethylenedicarboxylic Acid; Allomaleic Acid; trans-Butanedioic Acid;`(E)-2-Butenedioic acid; trans-1,2-Ethylenedicarboxylic acid; Allomaleic acid; Boletic acid; MELTING POINT(S): 299 C	HOOCCH=CHCOOH (116.07)
TIGLIC ACID CAS NUMBER : 80-59-1 EINECS NUMBER : 201-295-0 OTHER CHEMICAL NAME(S): (E)-2-Methyl-Crotonic acid; trans-alpha,beta-Dimethylacrylic Acid; trans-2-Methyl-2-Butenoic acid; trans-2-Methylcrotonic Acid; trans-2,3-Dimethylacrylic Acid; Cevadic acid; Tiglinic acid; 2,3-Dimethylacrylic acid; (E)-2,3-Dimethylacrylic acid; (2E)-2-Methyl-2-butenoic acid; MELTING POINT(S): 61 C	CH₃CH₂CH=CHCOOH (100.12)
ANGELIC ACID CAS NUMBER : 565-63-9 EINECS NUMBER : OTHER CHEMICAL NAME(S): (Z)-2-Methyl-Crotonic acid; cis-alpha,beta-Dimethylacrylic Acid; cis-2-Methyl-2-Butenoic acid; cis-2-Methylcrotonic Acid; cis-2,3-Dimethylacrylic Acid; (Z)-2,3-Dimethylacrylic acid; (2Z)-2-Methyl-2-butenoic acid; MELTING POINT(S):	CH₃CH₂CH=CHCOOH (100.12)
CITRACONIC ACID CAS NUMBER : 498-23-7 EINECS NUMBER : 207-858-7 OTHER CHEMICAL NAME(S): Methylmaleic acid; cis-Methylbutenedioic acid; methyl-Maleic acid; Kyselina citrakonova; 2-Methyl-2-butenedioic acid; (2Z)-2-Methyl-2-butenedioic acid; MELTING POINT(S): 94 C	HOOCCH=CCH₃COOH (130.10)
MESACONIC ACID CAS NUMBER : 498-24-8 EINECS NUMBER : 207-859-2 OTHER CHEMICAL NAME(S): trans-1-Propene-1,2-Dicarboxylic acid; trans-2-Methyl-2-Butenedioic acid; Methylfumaric acid; 2-Methylfumaric acid; (E)-2-Methyl-2-butenedioic acid; (E)-methyl-Butenedioic acid; Methylfumaric acid, ; Mesaconate; Kyselina mesakonova; (2E)-2-Methyl-2-butenedioic acid MELTING POINT(S): 200 C	HOOCCH=CCH₃COOH (130.10)