Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dihydroxy-5-methoxybenzaldehyde
Price: Check
Purity: 98.62%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 3,4-Dihydroxy-5-methoxybenzaldehyde
Price: ￥638.0/1g ￥2398.0/5g
Purity: 95.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4-dihydroxy-5-methoxybenzaldehyde
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

3934-87-0

3934-87-0 structure

3934-87-0 structure

Name: 3,4-Dihydroxy-5-methoxybenzaldehyde
Chemical Name: 5-Hydroxyvanillin
CAS Number: 3934-87-0
Molecular Formula: C₈H₈O₄
Molecular Weight: 168.147
Catalog: Organic raw materials Aldehyde
Create Date: 2018-12-27 18:17:05
Modify Date: 2025-08-23 18:36:14

Name	5-Hydroxyvanillin
Synonyms	3-hydroxyvanillin 3,4-Dihydroxy-5-methoxybenzaldehyde Benzaldehyde, 3,4-dihydroxy-5-methoxy- Protocatechualdehyde,5-methoxy 3,4-dihydroxy-5-methoxy-benzaldehyd 5-METHOXY-3,4-DIHYDROXYBENZALDEHYDE 3,4-dihydroxy-5-methoxy-benzaldehyde 5-Methoxyprotocatechualdehyde MFCD00016610 3,4-Dihydroxy-5-methoxybenzolcarbaldehyd 5-methoxy-protocatechualdehyd 3,4-dihydroxy-5-methoxybenzadehyde EINECS 223-513-3 3,4-Dihydroxy-5-methoxybenzaldehdye 4,5-dihydroxy-3-methoxybenzaldehyde 3-METHOXY-4,5-DIHYDROXYBENZALDEHYDE

Density	1.4±0.1 g/cm3
Boiling Point	339.9±37.0 °C at 760 mmHg
Melting Point	131-134°C
Molecular Formula	C₈H₈O₄
Molecular Weight	168.147
Flash Point	143.1±20.0 °C
Exact Mass	168.042252
PSA	66.76000
LogP	1.05
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.631

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CU5620000

CHEMICAL NAME :: Benzaldehyde, 3,4-dihydroxy-5-methoxy-

CAS REGISTRY NUMBER :: 3934-87-0

BEILSTEIN REFERENCE NO. :: 1956546

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C8-H8-O4

MOLECULAR WEIGHT :: 168.16

WISWESSER LINE NOTATION :: VHR CQ DQ EO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 650 mg/kg

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

REFERENCE :: JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 7,178,1964

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: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
RTECS	CU5620000
HS Code	2912499000

Precursor 10
2973-76-4 5438-36-8 134-96-3 65144-12-9
121-33-5 16414-34-9 124-41-4 139-85-5
2931-90-0 3934-84-7
DownStream 10
110642-42-7 29865-90-5 86-81-7 134-96-3
5780-07-4 14326-08-0 1782-55-4 651340-03-3
65144-12-9 75889-54-2

HS Code	2912499000
Summary	2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0%

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