Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2-Naphthaldehyde
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 2-Naphthaldehyde
Price: ￥258.0/25g ￥748.0/100g ￥88.0/5g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Naphthaldehyde
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 2-Naphthaldehyde
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

66-99-9

66-99-9 structure

66-99-9 structure

Name: 2-Naphthaldehyde
Chemical Name: 2-naphthaldehyde
CAS Number: 66-99-9
Molecular Formula: C₁₁H₈O
Molecular Weight: 156.181
Catalog: Biochemical Chinese herbal medicine ingredients
Create Date: 2018-02-23 08:00:00
Modify Date: 2025-08-21 21:19:56

Name	2-naphthaldehyde
Synonyms	naphthalene-2-carbaldehyde EINECS 200-640-2 Naphthalen-2-carbaldehyd MFCD00004094 2-Naphthalenecarboxaldehyde 2-Naphthaldehyde 2-Naphthalenecarboxaldehyde (9CI) β-Formylnaphthalene

Density	1.2±0.1 g/cm3
Boiling Point	299.5±9.0 °C at 760 mmHg
Melting Point	58-61 °C(lit.)
Molecular Formula	C₁₁H₈O
Molecular Weight	156.181
Flash Point	179.5±5.0 °C
Exact Mass	156.057510
PSA	17.07000
LogP	2.87
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.676
Storage condition	?20°C
Freezing Point	1.0755

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QJ0190010

CHEMICAL NAME :: 2-Naphthaldehyde

CAS REGISTRY NUMBER :: 66-99-9

BEILSTEIN REFERENCE NO. :: 0507750

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C11-H8-O

MOLECULAR WEIGHT :: 156.19

WISWESSER LINE NOTATION :: L66J CVH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 mg/kg

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

REFERENCE :: FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 19,964,1964

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xn: Harmful;Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S22-S24/25
RIDADR	UN 3335
WGK Germany	3
RTECS	QJ0190010
Packaging Group	I; II; III
HS Code	29122900

Precursor 10
1592-38-7 57009-73-1 2243-83-6 93-09-4
64002-54-6 827-54-3 939-26-4 580-13-2
201230-82-2 3857-83-8
DownStream 10
107916-92-7 1090-99-9 110876-52-3 511272-48-3
33741-78-5 360789-55-5 93-55-0 14625-56-0
143659-20-5 150096-57-4

HS Code	2912299000
Summary	2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

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