D(+)-Malic acid 636-61-3

Product Name: D(+)-Malic acid
CAS: 636-61-3
MF: C4H6O5
MW: 134.09
EINECS: 211-262-2

Product Description

Product Name: D(+)-Malic acid
CAS: 636-61-3
MF: C4H6O5
MW: 134.09
EINECS: 211-262-2

Application

1. Used for chiral additives and chiral auxiliaries

2. Flavoring agents and curing agents

Specifications :

Items	Specifications	Results
Appearance	White crystals or crystalline powder	Conforms
Specific rotation [α]D20	+1.6°~+2.6°	+1.8°
Chloride(Cl)	≤0.01%	<0.01%
Sulfate(SO4)	≤0.04%	<0.04%
Heavy metals(Pb)	≤20ppm	<20ppm
Arsenic (As2O3)	≤2ppm	<2ppm
Residue on ignition	≤0.1%	0.0005
Fumaric acid	≤0.50%	0.002
Maleic acid	≤0.050%	0.0001
L-Malic acid	≤0.50%	0.0028
Assay	≥98.5%	0.991

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.