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4,5-Dihydro-5,5-dimethyl-1H-pyrazole is a chemical compound with the molecular formula C5H10N2. It is a colorless liquid with a molecular weight of 98.15 g/mol. This heterocyclic compound features a pyrazole ring, which consists of a five-membered ring with two nitrogen atoms and three carbon atoms. The 4,5-dihydro and 5,5-dimethyl substitutions indicate that there are two hydrogen atoms attached to the fourth and fifth carbon atoms, and two methyl groups (CH3) are attached to the fifth carbon atom. 4,5-Dihydro-5,5-dimethyl-1H-pyrazole is used as a chemical intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other industrial applications. It is also known for its ability to act as a corrosion inhibitor and a stabilizer in various chemical processes.

4320-85-8

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Basic information
1. Product Name: 4,5-Dihydro-5,5-dimethyl-1H-pyrazole
2. Synonyms: 4,5-Dihydro-5,5-dimethyl-1H-pyrazole;5,5-Dimethyl-2-pyrazoline
3. CAS NO:4320-85-8
4. Molecular Formula: C₅H₁₀N₂
5. Molecular Weight: 98.15
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 4320-85-8.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 4,5-Dihydro-5,5-dimethyl-1H-pyrazole(CAS DataBase Reference)
10. NIST Chemistry Reference: 4,5-Dihydro-5,5-dimethyl-1H-pyrazole(4320-85-8)
11. EPA Substance Registry System: 4,5-Dihydro-5,5-dimethyl-1H-pyrazole(4320-85-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 4320-85-8(Hazardous Substances Data)

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4320-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4320-85-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,2 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4320-85:
(6*4)+(5*3)+(4*2)+(3*0)+(2*8)+(1*5)=68
68 % 10 = 8
So 4320-85-8 is a valid CAS Registry Number.

4320-85-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name	5,5-dimethyl-1,4-dihydropyrazole

1.2 Other means of identification

Product number	-
Other names	1H-Pyrazole,4,5-dihydro-5,5-dimethyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4320-85-8 SDS

4320-85-8Upstream product

4320-85-8Downstream Products

70395-54-9 6,6-dimethyl-3-phenyl-5,6,7,7a-tetrahydro-pyrazolo[1,5-d][1,2,4]oxadiazole

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