Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Purity: 98.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Butenedioic acid,2,3-dihydroxy-, (2E)-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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133-38-0

133-38-0 structure

133-38-0 structure

Name: 2-Butenedioic acid,2,3-dihydroxy-, (2E)-
Chemical Name: dihydroxyfumaric acid
CAS Number: 133-38-0
Molecular Formula: C₄H₄O₆
Molecular Weight: 148.07100
Create Date: 2018-02-18 08:00:00
Modify Date: 2025-09-18 11:34:47

Name	dihydroxyfumaric acid
Synonyms	Dihydroxy-fumarsaeure MFCD00149286 dihydroxy-fumaricaci dihydroxyfumarate DIHYDROXYBUTENEDIOIC ACID dihydrofumaric acid dihydroxy-fumaric acid DIHYDROXYFUMARIC ACID acidodiidrossifumarico EINECS 205-106-2

Density	2.055g/cm3
Boiling Point	308.6ºC at 760mmHg
Melting Point	156ºC (dec.)(lit.)
Molecular Formula	C₄H₄O₆
Molecular Weight	148.07100
Flash Point	154.7ºC
Exact Mass	148.00100
PSA	115.06000
Vapour Pressure	0mmHg at 25°C
Index of Refraction	1.658

CHEMICAL IDENTIFICATION

RTECS NUMBER :: LT1500000

CHEMICAL NAME :: Fumaric acid, dihydroxy-

CAS REGISTRY NUMBER :: 133-38-0

BEILSTEIN REFERENCE NO. :: 1724790

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C4-H4-O6

MOLECULAR WEIGHT :: 148.08

WISWESSER LINE NOTATION :: QVYQUYQVQ -T

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6 gm/kg

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

REFERENCE :: BCFAAI Bollettino Chimico Farmaceutico. (Societa Editoriale Farmaceutica, Via Ausonio 12, 20123 Milan, Italy) V.33- 1894- Volume(issue)/page/year: 101,903,1962

Safety Phrases	S22

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