| CAS
NO. |
3588-17-8 |
|
| EINECS
NO. |
222-724-8 |
| FORMULA |
HOOCCH=CHCH=CHCOOH |
| MOL
WT. |
142.11 |
|
H.S.
CODE
|
|
|
TOXICITY
|
|
| SYNONYMS |
(E,E)-Muconic acid;
2,4-Hexadienedioic acid, (E,E)- |
| trans,trans-Buta-1,3-diene-1,4-dicarboxylic acid;
trans,trans-1,3-Butadiene-1,4-dicarboxylic acid; trans,trans-2,4-Hexadienedioic
acid; |
| DERIVATION |
|
|
CLASSIFICATION
|
|
|
PHYSICAL
AND CHEMICAL PROPERTIES
|
| PHYSICAL
STATE |
White
crystalline powder |
| MELTING
POINT |
295
- 297 C |
| BOILING
POINT |
(Decomposes) |
| SPECIFIC
GRAVITY |
|
| SOLUBILITY
IN WATER |
insoluble |
| pH |
|
| VAPOR
DENSITY |
|
|
AUTOIGNITION
|
|
|
NFPA
RATINGS
|
|
|
REFRACTIVE
INDEX
|
|
| FLASH
POINT |
|
| STABILITY |
Stable
under ordinary conditions |
|
GENERAL
DESCRIPTION & APPLICATIONS
|
Muconic acid, chemically 2,4-hexadienedioic acid, is an unsaturated dicarboxylic
acid which has two double bonds, with chemical formula HOOCCH=CHCH=CHCOOH. It is
an analogue of sorbic acid, 2,4-hexadienoic acid which is characterized by the
broad effectiveness to inhibit molds, yeast, and many bacteria growth. There are
three isomers of muconic acid (trans-trans form is common which can be obtained
by the condensation reaction of glyoxal and malonic acid in the presence of
pyridine). trans-trans-Muconic acid is a white powder melting at 297 C;
insoluble in water, soluble in hot acetic acid and alcohol. It decomposes at the
melting point. The melting point of cis,cis-muconic acid and cis-trans-muconic
acid are 194 C and 190 C respectively. cis, cis-Muconic acid is soluble in hot
water( but insoluble in ether). trans,trans-muconic acid is a ring-opened
metabolite of benzene and is used for the indicator of an occupational benzene
exposure. Members of muconic acid related products include:
|
Product
|
CAS
RN
|
| Muconic acid |
505-70-4 |
| Vulpinic acid
|
521-52-8 |
| cis,cis-Muconic acid
|
1119-72-8 |
| 3-Hexenedinitrile
|
1119-85-3 |
| 2-Hydroxy-5-carboxymethylmuconate
semialdehyde |
2461-62-3 |
| Muconomycin A
|
3148-09-2 |
| trans,trans-Muconic acid |
3588-17-8 |
| 2-Hydroxymuconic acid
|
3685-55-0 |
| Verrucarin J
|
4643-58-7 |
| Muconolactone
|
6666-46-2 |
| 2-Fluoromuconic acid
|
10318-01-1 |
| 2-Hexenedinitrile
|
13042-02-9 |
| Carboxymuconolactone
|
13249-46-2 |
| 2,5-Dimethyl-2,4-hexadienedioic
acid |
20514-40-3 |
| 2,5-Dimethyl-2,4-hexadienedioic
acid |
20514-41-4 |
| 3-Chloromuconic acid |
20665-95-6 |
| 2,4-Dichloro-trans,trans-muconic acid |
22752-97-2 |
| 3-Chloro-trans-cis-muconic acid |
22752-96-1 |
| Pulvinic acid
|
26548-70-9 |
| 2-Chloromuconic acid
|
28823-37-2 |
| 4-Fluoromuconolactone
|
32486-23-0 |
| 2-Chloro-trans-cis-muconic acid |
34521-13-6 |
| Chloromuconic acid |
52050-02-9 |
| Disuccinimidyl
beta-hydromuconate |
72200-46-5 |
| 2,4-Dichloro-cis,cis-muconic acid |
72945-11-0 |
| 2-Hydroxy-5-chloromuconic
acid semialdehyde |
76260-73-6 |
| 2-Chloro-5-hydroxymuconic
acid |
76260-72-5 |
| 2-Chloro-cis,cis-muconic
acid |
76799-82-1 |
| 3-Chloro-cis,cis-muconic acid |
76799-83-2 |
| 2-Chloromuconolactone
|
76799-87-6 |
| 5-Chloromuconolactone
|
157762-78-2 |
|
| SALES
SPECIFICATION |
|
APPEARANCE
|
White
crystalline
powder
|
|
ASSAY
|
97.0%
min
|
| MELTING
RANGE |
293
- 297 C
|
| TRANSPORTATION |
| PACKING |
|
| HAZARD
CLASS |
|
| UN
NO. |
|
| OTHER
INFORMATION |
|
Hazard
Symbols: XI, Risk Phrases: 22-36/37/38, Safety Phrases: 26-36 |